A–10033 Sub. Code 4BCH1C1

A–10033

B.Sc. DEGREE EXAMINATION, APRIL 2021 &

Supplementary/Improvement/Arrear Examinations

First Semester

Chemistry

FUNDAMENTAL CONCEPTS OF CHEMISTRY

(CBCS – 2014 onwards)

Time : 3 Hours Maximum : 75 Marks

Part A (10 2 = 20)

Answer all questions.

1. What is Zeeman effect?

ã©õß ÂøÍÄ GßÓõÀ GßÚ?

2. What are the constituents of an atom?

J¸ AqÂß Tmk¨ ö£õ¸mPÒ ¯õøÁ?

3. How do you define atomic size of an element?

J¸ uÛ©zvß Aq £›©õnzøu GÆÁõÖ Áøμ¯øÓ

ö\´Áõ´?

4. Define the term electronegativity of an atom.

J¸ AqÂß G»Umμõß PÁº BØÓÀ GßÓ £uzøu

Áøμ¯Ö.

Sub. Code 4BCH1C1

A–10033

2

5. What is inductive effect?

yskuÀ ÂøÍÄ GßÓõÀ GßÚ?

6. What is meant by heterolytic cleavage of C–C bond? Give an example.

C–C ¤øn¨¦ \©©ØÓ ¤Í¨¦ Gß£uß ö£õ¸Ò GßÚ? J¸ Euõμn® u¸P.

7. Define the term ferromagnetism.

Lö£÷μõ Põ¢u® GßÓ £uzøu Áøμ¯Ö.

8. What is molar magnetic susceptibility?

÷©õ»õº Põ¢u HØ¦zvÓß GßÓõÀ GßÚ?

9. What do you understand by the term CPU used in computer?

PoÛ°À £¯ß£k® CPU GßÓ £u® £ØÔ }Âº AÔÁx ¯õx?

10. What are the constants used in BASIC language?

BASIC ö©õÈ°À £¯ß£k® ©õÔ¼PÒ ¯õøÁ?

Part B (5 5 = 25)


11. (a) Write notes on Aufbau principle.

BL£õ öPõÒøP £ØÔ SÔ¨¦ ÁøμP.

Or

(b) What is Schrodinger’s equation? Explain the significance of and 2 .

è÷μõißáº \©ß£õk GßÓõÀ GßÚ? ©ØÖ® 2 ß •UQ¯zxÁzøu ÂÍUPÄ®.

A–10033

3

12. (a) What is meant by “diagonal relationship”? Explain the diagonal relationship between lithium and magnesium.

‰ø»Âmhz öuõhº¦ Gß£uß ö£õ¸Ò GßÚ?

¼zv¯zvØS® ö©UÜ]¯zvØS® Cøh÷¯²ÒÍ

‰ø»Âmhz öuõhºø£ ÂÍUSP.

Or

(b) What is ionisation potential? Why the second ionisation potential value is higher than the first ionisation potential value?

A¯Û¯õUP BØÓÀ GßÓõÀ GßÚ? CμshõÁx

A¯Û¯õUP BØÓÀ •uÀ A¯Û¯õUP BØÓø»Âh

AvP©õP C¸UPU Põμn® ¯õx?

13. (a) Give IUPAC name for the following :

(i) Cl|

CHOCHCHCH 23

(ii) 22

23

NHNO||

OHCHCHCHCH

(iii)

32

22

3

CHNH||

COOHCCHCH|CH

A–10033

4

R÷Ç öPõkUP¨£mhøÁPÐUS IUPAC ö£¯º u¸P.

(i) Cl|

CHOCHCHCH 23

(ii) 22

23

NHNO||

OHCHCHCHCH

(iii)

32

22

3

CHNH||

COOHCCHCH|CH

Or

(b) Explain the stability of carbanion with suitable examples.

Põº£ß Gvºªß A¯Û°ß {ø»z ußø©ø¯ uS¢u Euõμn[PÒ öPõsk ÂÍUSP.

14. (a) The molecule of CO2 is linear and the molecule of NH3 is nonlinear. Explain on the basis of their dipole moments.

Põº£ßøh BUøék }Í Á›ø\¯õÚ ‰»UTÖ ©ØÖ® A®÷©õÛ¯õ }Í Á›ø\¯ØÓ ‰»UTÖ. CÁØøÓ AøÁPÎß C¸•øÚ v¸¨¦z vÓzvß Ai¨£øh°À ÂÍUSP.

Or

(b) Write a brief account on Clausius – Mosotti equation.

QÍõ]¯ì – ö©õ\õmi \©ß£õmøh¨ £ØÔ _¸UP©õP GÊxP.

A–10033

5

15. (a) Write a BASIC program to determine morality of a solution.

J¸ Pøμ\¼ß ö©õ»õ›miø¯U PnUQh BASIC ÁÈ•øÓø¯ GÊxP.

Or

(b) Explain the classification of computers.

PoÛPøÍ ÁøP¨£kzxuø» ÂÍUSP.

Part C (3 10 = 30)

Answer any three questions.

16. (a) Derive de Broglie equation.

(b) What is Compton effect? Explain. (4 + 6)

(A) j ¤μõU¼ \©ß£õmøhz u¸ÂUP.

(B) Põ®¨hß ÂøÍÄ Gß£x ¯õx? ÂÍUSP.

17. (a) How are elements classified based upon the electronic configurations? Explain.

(b) Discuss the variations of electron affinity in the periodic table along a period and down the group. (6 + 4)

(A) uÛ©[PÒ G»Umμõß Aø©¨¤ß Ai¨£øh°À GÆÁõÖ ÁøP¨£kzu¨£mkÒÍÚ? ÂÍUSP.

(B) uÛ© Á›ø\ AmhÁøn°À Ch¨£UP©õP C¸¢x Á»¨£UP©õP J¸ öuõh›¾®, RÇõPz öuõSv°¾® G»Umμõß PÁº ußø© GÆÁõÖ ÷ÁÖ£kQÓx Gß£øu ÂÁõv.

18. (a) How is the molecular weight of an organic base determined?

(b) What are rearrangement reactions? Give an example. (8 + 2)

A–10033

6

(A) P›© Põμzvß ‰»UTÖ Gøh GÆÁõÖ {ºn°UP¨£kQÓx?

(B) E¸©õÖuÀ ÂøÚPÒ GßÓõÀ GßÚ? J¸ Euõμn® u¸P.

19. Discuss any three important applications of magnetic susceptibility measurement.

Põ¢u HØ¦zvÓß AÍøÁ°ß H÷uÝ® ‰ßÖ •UQ¯ £¯ß£õkPøÍ ÂÁõv.

20. Write BASIC programs to determine root mean square velocity of a gas and half-life period of a reaction.

J¸ Áõ²Âß ÁºUP‰» C¸£i vø\ ÷ÁP® ©ØÖ® J¸

ÂøÚ°ß Aøμ ÁõÌÄU Põ»zøu PnUQh BASIC ÁÈ•øÓPøÍ GÊxP.

————————

A–10034



First Semester

Chemistry

INORGANIC CHEMISTRY — I



Part A (10 2 = 20)


1. Define sigma bond.

Áøμ¯Ö : ]U©õ ¤øn¨¦.

2. What is meant by bond order?

¤øn¨¦ uμ® GßÓõÀ GßÚ?

3. Write the uses of ozone.

K÷\õÛß £¯ßPøÍ GÊxP.

4. Write the preparation of H2O2.

H2O2 &ß u¯õ›¨ø£ GÊxP.

5. What is meant by Roasting?

ÁÖzuÀ GßÓõÀ GßÚ?

Sub. Code 4BCH1C2

A–10034

2

6. Write the uses of silver.

öÁÒÎ°ß £¯ßPøÍ GÊxP.

7. Give the structure of ammonia.

A®÷©õÛ¯õÂß ÁiÁø©¨ø£z u¸P.

8. How to prepare sodium bismuthate?

÷\õi¯® ¤ì©z÷um GÆÁõÖ u¯õ›UP¨£kQÓx?

9. What is mass defect?

{øÓ SøÓ£õk GßÓõÀ GßÚ?

10. Write the applications of radioactivity in agriculture.

ÂÁ\õ¯zvÀ Pv›¯UPzvß £¯ßPøÍ GÊxP.

Part B (5 5 = 25)


11. (a) Write short notes on sp3d2 hybridization with examples.

sp3d2 &ß CÚUP»¨¤øÚ uS¢u Euõμnzxhß _¸UP©õP GÊxP.

Or

(b) Write the differences between VBT and MOT.

VBT ©ØÖ® MOT Cøh÷¯¯õÚ Âzv¯õ\zvøÚ GÊxP.

12. (a) Discuss about the oxides and their classification.

BUøékPÒ ©ØÖ® Auß ÁøPPøÍ ÂÁõv.

Or

(b) Give the manufacture of Ozone.

K÷\õÛß u¯õ›¨ø£ u¸P.

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13. (a) Explain Van - Arkel vapour phase refining.

Áõß&Aº÷PÀ Áõ² {ø» _zvP›¨¦ £ØÔ ÂÍUSP.

Or

(b) Describe the extraction of copper and its uses.

Põ¨£º ¤›zöukzuÀ ©ØÖ® Auß £¯ßPøÍ GÊxP.

14. (a) Give the preparation, properties and uses of Hydrazine.

øímμõêÛß u¯õ›¨¦ £s¦PÒ ©ØÖ® £¯ßPøÍ GÊxP.

Or

(b) Write the distinction between arsenites and arsenates.

Bº]øÚmì ©ØÖ® Bº]÷Úmì Cøh÷¯õÚ ÷ÁÖ£õmiøÚ GÊxP.

15. (a) Discuss about mass - energy relationship.

{øÓ ©ØÖ® BØÓÀ Cøh÷¯¯õÚ öuõhº¤øÚ ÂÁõv.

Or

(b) Give the principle of atom bomb and hydrogen bomb.

AqSsk ©ØÖ® øímμáß Ssiß uzxÁzøu u¸P.

Part C (3 10 = 30)


16. Discuss about the MO diagram of CO.

CO&Âß ‰»UTÖ Bº¤mhõÀ Áøμ£h® Áøμ¢x ÂÁõv.

A–10034

4

17. Give the preparation, properties and uses of LiAIH4 and NaBH4.

LiAIH4 ©ØÖ® NaBH4 CÁØÔß u¯õ›¨¦, £s¦PÒ ©ØÖ® £¯ßPøÍ u¸P.

18. Explain the diagonal relationship between Lithium and Magnesium.

¼zv¯® ©ØÖ® ö©UÜ]¯® CÁØÔØPõÚ ‰ø»Âmh öuõhºø£ ÂÍUSP.

19. (a) Give the manufacture of nitric acid.

(b) Write the preparation and uses of tartar emetic.

(A) ø|m›U Aª»zvß u¯õ›¨ø£ u¸P.

(B) hõºhº GªiUQß u¯õ›¨¦ ©ØÖ® £¯ßPøÍ GÊxP.

20. (a) Explain Soddy's group displacement law.

(b) Explain about Cyclotron.

(A) ÷\õv°ß SÊ Ch¨ö£¯ºa] Âvø¯ ÂÍUSP.

(B) ø\US÷Íõmμõß £ØÔ ÂÍUSP.

————————

A–10035



Second Semester

Chemistry

ORGANIC CHEMISTRY — I



Part A (10 2 = 20)


1. State saytzaff rule?

÷\\õ¨m Âv Áøμ¯Ö.

2. Draw the structure of Westron.

öÁìmμõÛß Aø©¨ø£ Áøμ.

3. What is absolute alcohol?

uÛ BÀPíõÀ GßÓõÀ GßÚ?

4. Draw the structure of chlorex

S÷ÍõμUêß Aø©¨ø£ ÁøμP.

5. Write D and L form of tartaric acid.

D ©ØÖ® L hõºhõ›U Aª»zvß Aø©¨ø£ GÊxP.

6. Draw the structure of malonic acid.

©»ÛU Aª»zvß ÁiÁø©¨ø£ ÁøμP.

Sub. Code 4BCH2C1

A–10035

2

7. Draw the saw horse projection of n-butane.

n&¤³m÷hÛß \õíõºè ÁiÁø©¨ø£ GÊxP.

8. What is optical isomerism?

JÎ°À _ÇØ] ©õØÔ¯® GßÓõÀ GßÚ?

9. What is asymmetric carbon?

\©a^μØÓ Põº£ß GßÓõÀ GßÚ?

10. Define optical activity.

JÎ°¯À ö\¯À£õk Áøμ¯Ö.

Part B (5 5 = 25)


11. (a) With suitable example explain E1 and E2 mechanism.

uS¢u GkzxUPõmkhß E1 ©ØÖ® E2 ÂøÚ ÁÈ •øÓø¯ ÂÍUSP.

Or

(b) Write the preparation properties and uses of butadiene.

¤³mhõøh°ß u¯õ›¨¦, £s¦PÒ ©ØÖ® £¯ß£õkPøÍ GÊxP.

12. (a) Write the preparation and uses of Diethyl ether.

øh GzvÀ Du›ß u¯õ›¨¦ ©ØÖ® £¯ß£õkPøÍ GÊxP .

Or

(b) Write the preparation of allyl alcohol from glycerol.

QÎ\μõ¼¸¢x Aø»À BÀPíõÀ u¯õ›¨ø£ GÊxP.

A–10035

3

13. (a) With suitable example explain MPV reduction?

uS¢u GkzxUPõmkhß MPV JkUPzøu ÂÍUSP.

Or

(b) Write the conversion of latic acid to pyruvic acid.

»õUiU Aª»zv¼¸¢x ø£¸ÂU Aª» ©õØÓzøu GÊxP.

14. (a) Sawhorse, Newman and Fischer projection of 1,2 dichloro ethane and explain it.

1, 2&øh S÷Íõ÷μõ D÷uÛß \õíõºè, {³÷©ß, ¤åº ÁiÁø©¨ø£ GÊv ÂÍUSP.

Or

(b) With suitable example explain Walden inversion.

uS¢u GkzxUPõmkhß ÁõÀhß uø»RÌ ©õØÓzøu ÂÍUSP.

15. (a) Discuss about optical activity of allenes.

AÀ¼ßPÎß JÎ _ÇØ] ö\¯À£õk ÂÍUSP.

Or

(b) Discuss about mutarotation of glucose and fructose.

SÐU÷Põì ©ØÖ® ¤μU÷hõêß ª³mhõ _ÇØ] ©õØÔ¯zøu¨ £ØÔ GÊxP.

Part C (3 10 = 30)


16. Explain the SN1 and SN2 mechanism by choosing an alkyl halide as an example.

H÷uÝ® J¸ AÀøPk íø»øh GkzxUPõmhõPU öPõsk SN1 ©ØÖ® SN2 ÂøÚ ÁÈ •øÓø¯ ÂÁ›UPÄ®.

17. Explain the following : (a) Zeisel methods is useful in the determination of

ethers. (b) Wittig reaction.

A–10035

4

¤ßÁ¸ÁÚÁØøÓ ÂÁ›.

(A) Dzuøμ AÍÂku¼À ø\ö\À •øÓ GÆÁõÖ £¯ß£kQÓx Gß£øu ÂÍUSP.

(B) ÂmiU ÂøÚ.

18. (a) Complete the following reaction.

OHMgBrCHCH

223

33COCHCH OHMgBrCHCH

223

2.1.

3COClCH

(b) With suitable example explain the Oppaenaur

oxidation. (A) RÌUPsh ÂøÚø¯ §ºzv ö\´P.

OHMgBrCHCH

223

33COCHCH OHMgBrCHCH

223

2.1.

3COClCH

(B) uS¢u GkzxUPõmkPÐhß J¨¤Û¯º BUêá÷ÚØÓ ÂøÚø¯ GÊxP.

19. (a) Define and explain Bayer's strain theory. (b) With suitable example explain resolution recemic

mixture.

(A) ÷£¯›ß v›¦ öPõÒøPø¯ ÂÁ›.

(B) uS¢u GkzxUPõmkhß öμ]ªU P»øÁø¯ ¤›zöukzuø» ÂÍUSP.

20. Write a brief note on the following : (a) Estimation of glucose (b) Structure of cellulose (c) Optical activity of spiranes.

¤ßÁ¸ÁÚ £ØÔ Â›ÁõP ÂÁ›.

(A) SÐU÷Põêß AÍøÁ {ºn°zuÀ

(B) ö\À¾÷»õ]ß Aø©¨¦

(C) ìø£÷μÛß JÎ°¯À ö\¯À£õk.

————————

A–10036



Second Semester

Chemistry

PHYSICAL CHEMISTRY — I


Part A (10 2 = 20)


1. State Berthelot equation.

ö£ºzu÷»õm \©ß£õk Á¸Â.

2. Explain the term Inversion temperature.

uø»RÌ öÁ¨£{ø»ø¯ ÂÍUSP.

3. Define the critical constant.

{ø»©õÖ ©õÔ¼ø¯ Áøμ¯Ö.

4. What is meant by Mean-free path?

\μõ\› ÷©õu¼hz öuõø»Ä GßÓõÀ GßÚ?

5. What is the viscosity in S.I. Units?

£õSzußø©°ß S.I. A»S GßÚ?

6. Define the term adsorption.

£μ¨¦ PÁºa] Âø\ø¯ Áøμ¯Ö.

Sub. Code 4BCH2C2

A–10036

2

7. State the law of chemical equilibrium.

÷Áv \©{ø» Âvø¯ TÖP.

8. What is catalytic poisons?

Âå ÂøÚ³UQ GßÓõÀ GßÚ?

9. What is Gold number?

u[P Gs GßÓõÀ GßÚ?

10. What is Bancroft’s rule?

ö£ßQμõ¨m Âv GßÓõÀ GßÚ?

Part B (5 5 = 25)


11. (a) Discuss about kinetic theory of gases.

Áõ²UPÎß C¯UPÂ¯À öPõÒøPø¯¨ £ØÔ ÂÁ›.

Or

(b) Write brief note on Boyle temperature of gases.

Áõ²UPÎß £õ°À öÁ¨£{ø»ø¯¨ £ØÔ ÂÁ›.

12. (a) Explain the P-V isotherm.

P-V I÷\õ÷uõø© ÂÍUSP.

Or

(b) Discuss about Loschmidt number and viscosity of gas.

»õìªm Gs ©ØÖ® Áõ²UPÎß £õS{ø»ø¯¨ £ØÔ ÂÁ›.

A–10036

3

13. (a) Explain the effect of temperature on surface tension.

£μ¨¦ PÁºa]°ß «x öÁ¨£{ø» ©õØÓ® HØ£kzx®

ÂøÍøÁ ÂÍUSP.

Or

(b) Briefly discuss the salient features of the theory the liquid crystal.

vμÁ £iÁU öPõÒøP°ß •UQ¯zxÁ[PøÍ¨ £ØÔ

ÂÁ›.

14. (a) Derive the relationship between Kp and Kc.

Kp ©ØÖ® Kc US® Cøh÷¯ EÒÍ öuõhº¤øÚ

GÊxP.

Or

(b) Derive the law of mass action from kinetic theory.

C¯UPÂ¯À ÷Põm£õmi¼¸¢x ö£õ¸sø©

ö\¯Ø£õmk Âv GÆÁõÖ u¸ÂUP¨£kQÓx.

15. (a) What are electrophoresis and electro osmosis? Discuss the application of these phenomena.

ªß¤›øP ©ØÖ® ªß \ÆÅk £μÁÀ GßÓõÀ GßÚ?

Auß £¯ß£õkPøÍ ÂÍUSP.

Or

(b) Discuss about Brancroft rule and HLB number.

£õßQ›Lm Âv ©ØÖ® HLB Gs BQ¯ÁØøÓ¨ £ØÔ

ÂÁ›.

A–10036

4

Part C (3 10 = 30)


16. Derive the Van der Waals equation of real gases. Give the units of Van der Waal’s equation.

|À¼¯À¦ Áõ²UPÐUPõÚ Áõshº ÁõÀì \©ß£õmøh ÂÁ›zx GÊxP ©ØÖ® Auß A»SPøÍz u¸P.

17. Explain the Boltzmann distribution of molecular velocities.

‰»UTÖPÎß vø\÷ÁPzøu PshÔÁuØPõÚ ÷£õÀìm÷©ß £[RkPøÍ ÂÍUSP.

18. Discuss briefly BET theory of multi-layer adsorption and explain the terms involved in this equation.

£»¨£i ¦Ó EÔg\¾UPõÚ BET öPõÒøPø¯ ÂÁ›. ÷©¾®

BET \©ß£õmiÀ C¸US® PõμoPøÍ ÂÍUSP.

19. Discuss the kinetics of enzyme catalysed reaction.

ö|õv ÂøÚ³UQ ÂøÚPÎß C¯UPÂ¯ø» ÂÁ›.

20. (a) How are gels prepared? How would be distinguish between elastic and non-elastic gels?

(b) Discuss any five importance and applications of colloids.

(A) ‘öáÀPÒ’ GÆÁõÖ u¯õ›UP¨£kQßÓÚ? «Òußø© öáÀPøÍ²® «Íõ ußø© öáÀPøÍ²® GÆÁõÖ ÷ÁÖ£kzxÁõ´?

(B) TÌ©[PÎß H÷uÝ® I¢x £¯ß£õkPøÍ ÂÍUSP.

————————

A–10037



Third Semester

Chemistry

INORGANIC CHEMISTRY–II



Section A (10 2 = 20)

Answer all the questions.

1. Write the preparation of fluorine.

¦Ð›Ûß u¯õ›¨ø£ GÊxP.

2. Give the examples for covalent carbides.

_P Põ›ø£kPÐUS Euõμn® u¸P.

3. Define Lattice energy.

Áøμ¯Ö – £iPUTk BØÓÀ.

4. What is meant by Hydrogen bonding?

øímμáß ¤øn¨¦ GßÓõÀ GßÚ?

5. What are the uses of titanium?

øhmhõÛ¯zvß £¯ßPÒ ¯õøÁ?

6. What is zirconium halide?

âº÷PõÛ¯® íõø»k GßÓõÀ GßÚ?

Sub. Code 4BCH3C1

A–10037

2

7. What are lanthanides?

»õ¢uøÚkPÒ GßÓõÀ GßÚ?

8. Write any two applications of actinides.

BUiøÚkPÎß Cμsk £¯ß£õkPøÍ GÊxP.

9. Define unit cell.

Áøμ¯Ö – A»S Tk.

10. What is meant by metallic crystals?

E÷»õP £iP[PÒ GßÓõÀ GßÚ?

Section B (5 5 = 25)


11. (a) Give the structure of IF5 and IF7.

IF5 ©ØÖ® IF7 –ß ÁiÁø©¨ø£ u¸P.

Or

(b) Discuss the chemistry of fullerenes.

¦ÒÍŸßì ÷Áv°¯À £ØÔ ÂÁõv.

12. (a) Write the preparation and properties of permonocarbonic acid.

ö£º÷©õ÷ÚõPõº÷£õÛU Aª»zvß u¯õ›¨¦ ©ØÖ® £s¦PøÍ GÊxP.

Or

(b) Explain Fajan's rule.

£áõßì Âvø¯ ÂÍUSP.

13. (a) Write the general characteristics of d-block elements.

d-öuõSv uÛ©[PÎß ö£õxÁõÚ ]Ó¨¤¯À¦PøÍ GÊxP.

Or

(b) Describe about ammonium molybdate.

A®÷©õÛ¯® ©õ¼¨÷hm £ØÔ ÂÁ›.

A–10037

3

14. (a) Explain lanthanide contraction.

»õ¢uøÚk SÖUP® £ØÔ ÂÍUSP.

Or

(b) Write the preparation, properties and uses of oxides of cerium.

^›¯® BUøéiß u¯õ›¨¦, £s¦PÒ ©ØÖ® £¯ßPøÍ GÊxP.

15. (a) Explain the laws of crystallography.

£iPÂ¯¼ß ÂvPøÍ ÂÍUSP.

Or

(b) Derive Bragg's equation.

¨μõU \©ß£õmøh Á¸Â.

Section C (3 10 = 30)


16. Give the preparation and properties of xenon fluorides, oxyfluoride and kryptonfluoride.

öáÚõß ¨ÐøμkPÒ, BUê¨Ðøμk ©ØÖ® Q›¨hõß ¨ÐøμkPÎß u¯õ›¨¦ ©ØÖ® £s¦PøÍ u¸P.

17. Write the preparation, properties and structure of permonosulphuric acid and perdisulphuric acid.

ö£º÷©õ÷Úõ\À¤²›U Aª»® ©ØÖ® ö£ºøh\À¤³›U Aª»zvß u¯õ›¨¦, £s¦PÒ ©ØÖ® Aø©¨ø£ GÊxP.

18. Discuss the extraction and properties of vanadium and tungsten.

öÁni¯® ©ØÖ® h[ìhß BQ¯ÁØÔß ¤›zöukzuÀ ©ØÖ® £s¦PøÍ ÂÁõv.

A–10037

4

19. Write the optical and magnetic properties of lanthanides.

»õ¢uøÚkPÎß JÎ°¯À ©ØÖ® Põ¢u¨£s¦PøÍ ÂÁõv.

20. (a) Give the structure of NaCl.

(b) Discuss about defects in crystals.

(A) NaCl–ß ÁiÁø©¨ø£ u¸P.

(B) £iP[PÎß SøÓPÒ £ØÔ ÂÁ›.

————————

A–10038



Fourth Semester

Chemistry

ORGANIC CHEMISTRY – II



Section A (10 2 = 20)


1. Cyclopropenyl cation is aromatic or non-aromatic?

ø\UQ÷Íõ ¨÷μõ¥øÚÀ ÷|ºªß A¯Û Gß£x P›© ‰»UTÓõ AÀ»x P›©ØÓ ‰»UTÓõ.

2. Give the structure of DDT.

DDT ß ÁiÁ Aø©¨ø£ ÁøμP.

3. Write Reimer–Tieman reaction.

Ÿ©ºøh©ß ÂøÚø¯ GÊxP.

4. Write the preparation of Anisole.

AÛ÷\õ¼ß u¯õ›¨ø£ GÊxP.

5. What is claisen reaction?

QøÍ\ß ÂøÚ GßÓõÀ GßÚ?

6. Give the preparation of anthranilic acid.

B¢vμ¼U Aª»zvß u¯õ›¨ø£ GÊxP.

Sub. Code 4BCH4C1

A–10038

2

7. How to prepare benzene sulphonic acid?

ö£ß^ß \ÀL÷£õÛU Aª»® GÆÁõÖ u¯õ›UP¨£kQÓx.

8. Write the preparation of TNT.

TNT u¯õ›¨ø£ GÊxP.

9. Give the structure of naphthalene.

|õ¨u¼Ûß ÁiÁø©¨¦ ÁøμP.

10. What is saponification value?

÷\õ¨£õUPÎß ©v¨¦ GßÓõÀ GßÚ?

Section B (5 5 = 25)


11. (a) Write the mechanism of Friedel craft a alkylation reaction.

¤øμhÀ UμõL¨m AÀøP÷»\ß ÂøÚ°ß ÂøÚ ÁÈ•øÓø¯ ÂÁ›.

Or

(b) What are activating and deactivating groups?

ysk® öuõSvPÒ yshõ öuõSvPÒ GßÓõÀ GßÚ?

12. (a) Write the mechanism of Kolbe’s reaction.

÷PõÀ¨ ÂøÚ°ß ÂøÚ ÁÈø¯ GÊxP.

Or

(b) Explain the preparation and uses of pyrogallol.

ø£÷μõP»õÀ u¯õ›¨¦ ©ØÖ® £¯ß£õkPøÍ GÊx.

A–10038

3

13. (a) Write Cannizaro’s reaction.

PßÛ\õ÷μõ ÂøÚø¯ GÊxP.

Or

(b) Discuss the effect of substituents on the acidic character of benzoic acid.

ö£ß\õ°U Aª»zvß Aª» ußø©ø¯ £õvUS® PõμoPøÍ £ØÔ ÂÁ›.

14. (a) Give the preparation of saccharin.

\õUP›Ûß u¯õ›¨ø£ GÊxP.

Or

(b) Discuss the basic character of aromatic amines.

P›© A«ßPÎß Põμzußø©ø¯ £ØÔ ÂÍUSP.

15. (a) Write the preparation, properties and uses of phenanthrene.

L¨Úõßu›Ûß u¯õ›¨¦, £s¦ £¯ßPøÍ ÂÁ›.

Or

(b) Write the preparation and uses of stilbene.

ìiÀ¥Ûß u¯õ›¨¦ ©ØÖ® £¯ßPøÍ GÊxP.

Section C (3 10 = 30)


16. Discuss the aromatic electrophilic substitution reaction with mechanism.

A÷μõ÷©miU G»UmμõßPÁº £v½mk ÂøÚø¯ GkzxUPõmkhß ÂÍUSP.

17. (a) Write the estimation of phenol. (5)

(b) Write the preparation and uses of resorcinol. (5)

(A) ¥ÚõÀ AÍÂkuø»¨ £ØÔ ÂÁ›.

(B) ›è÷\õº]Úõ¼ß u¯õ›¨¦ ©ØÖ® £¯ßPøÍ GÊx.

A–10038

4

18. (a) Explain Knoevenagal reaction. (5)

(b) Give the preparation and uses of cinnamic acid and aspirin. (5)

(A) ÷|õÁ|õPÀ ÂøÚø¯ GÊxP.

(B) ]ßÚªU Aª»® ©ØÖ® Bì¤›ß BQ¯ÁØÔß u¯õ›¨¦ ©ØÖ® £¯ßPøÍ ÂÁ›.

19. (a) Write the preparation and uses of chloramine T. (4)

(b) Write the synthetic applications of benzene diazonium chloride. (6)

(A) S÷Íõμªß T ß u¯õ›¨¦ ©ØÖ® £¯ßPøÍ TÖP.

(B) ö£ß^ß øh¯÷\õÛ¯® E¨¤ß ö\¯ØøP £¯ß£õkPøÍ GÊxP.

20. (a) Give the preparation and uses of napthaquinone and anthraquinone. (6)

(b) Explain the following terms :

(i) Iodine value

(ii) Acid value. (4)

(A) |õ¨uõS°÷Úõß ©ØÖ® B¢vμõS°÷Úõß BQ¯ÁØÔß u¯õ›¨¦ ©ØÖ® £¯ß£õkPøÍ ÂÁ›.

(B) ¤ßÁ¸ÁÚ £ØÔ ÂÍUSP.

(i) A÷¯õiß ©v¨¦

(ii) Aª» ©v¨¦.

————————

A–10039



Fifth Semester

Chemistry

PHYSICAL CHEMISTRY – II



Part A (10 2 = 20)


1. Define closed system

Áøμ¯Ö – ‰i¯ Aø©¨¦.

2. What is Bond energy?

¤øn¨¦ BØÓÀ GßÓõÀ GßÚ?

3. Write the statement of second law of thermodynamics.

öÁ¨£ C¯UPÂ¯¼ß Cμshõ® Âvø¯ GÊxP.

4. Define Chemical potential.

Áøμ¯Ö ÷Áv¨£s¦.

5. Define rate constant.

Áøμ¯Ö – Ãu ©õÔ¼.

6. What is order of reaction?

ÂøÚÁ›ø\ GßÓõÀ GßÚ?

Sub. Code 4BCH5C1

A–10039

2

7. What is plane of symmetry?

\©a^º uÍ® GßÓõÀ GßÚ?

8. What is point group?

¦ÒÎz öuõSv GßÓõÀ GßÚ?

9. Write Hooke's equation.

ïU \©ß£õmøh GÊxP.

10. Define Stokes lines.

Áøμ¯Ö – ì÷hõUì Á›PÒ.

Part B (5 5 = 25)

Answer all the questions, choosing either (a) or (b).

11. (a) Write the mathematical derivation of first law of thermodynamics.

öÁ¨£ C¯UPÂ¯¼ß •uÀ Âv°ß Pou

\©ß£õmøh GÊxP.

Or

(b) Derive Krichoff's equation.

îº\õ¨ \©ß£õmøh Á¸Â.

12. (a) Write the physical significance of entropy.

Gßm÷μõ¤°ß C¯Ø¤¯À ]Ó¨¤¯À¦PøÍ GÊxP.

Or

(b) Derive Gibbs-Duhem equation.

Q¨ì – m³P® \©ß£õmøh Á¸Â.

A–10039

3

13. (a) Derive the rate constant for the inversion of cane sugar.

P¸®¦ \ºUPøμ°ß uøÇRÌ Âv ©õÔ¼°ß \©ß£õmøh Á¸Â.

Or

(b) Write the collision theory of bimolecular reaction.

÷©õuÀ öPõÒøP°ß Cμmøh ‰»UTÔß ÂøÚPøÍ GÊxP.

14. (a) Write the products of symmetry operations.

\©a^º ö\¯À£õkPÎß \õº¦PøÍ GÊxP.

Or

(b) Explain inverse matrices.

uøÇRÌ ö©m›USPÒ £ØÔ ÂÁ›.

15. (a) Discuss Born - Oppenheimer approximation.

£õºß – K¨£ßîö©º ÷uõμ¯® £ØÔ ÂÁõv.

Or

(b) Write the comparison of Raman and IR spectroscopy.

μõ©ß ©ØÖ® APa]Á¨¦ {øÓ©õø»©õÛ°ß Cøh÷¯¯õÚ JØÖø©PøÍ GÊxP.

Part C (3 10 = 30)


16. (a) Write the relationship between Cv and Cp.

(b) Derive Joule - Thomson co-efficient of ideal gases

(A) Cv ©ØÖ® Cp CÁØÔØQøh÷¯¯õÚ öuõhºø£ GÊxP.

(B) áúÀ–uõ®éÛß C»m]¯ Áõ² SnP® Á¸Â.

A–10039

4

17. Derive Classius - Clapeyron equation.

QÍõê¯ì – QÍõ¨μõß \©ß£õmøh Á¸Â.

18. (a) Write the application to saponification of ester.

(b) Lindemann's hypothesis.

(A) Gìhøμ \ÁºUPõμ©õUSu¼ß £¯ß£õkPøÍ GÊxP.

(B) ¼sm÷©ßì P¸x÷PõÒ

19. Construct C2V point table.

C2V – °ß ¦ÒÎ AmhÁønø¯ Pmhø©UP.

20. (a) Explain rigid rotator

(b) Write short note on Larmor Precession.

(A) ©õÓõ _ÇØ] ÂÍUSP.

(B) »õº©º ©õØÓ® £ØÔ ]Ö SÔ¨¦ ÁøμP.

————————

A–10326



First Semester

Chemistry

INORGANIC CHEMISTRY – III



Part A (10 × 2 = 20)


1. Give the IUPAC name of the following coordination compounds

(a) ]Cl[Fe(CN)K 243 (b) 4223 ]SO(en))[Co(NH

RÌPsh AønÄa ÷\º©[PÐUS IUPAC •øÓ£i ö£¯›kP.

(A) ]Cl[Fe(CN)K 243 (B) 4223 ]SO(en))[Co(NH

2. Define coordination number and coordination sphere.

AønÄ Gs ©ØÖ® AønÄ ÷PõÍ® Áøμ¯Ö.

3. Define spectrochemical series.

÷\õv{μÀ Á›ø\ Áøμ¯Ö.

4. What is CFSE?

CFSE GßÓõÀ GßÚ?

Sub. Code ABCH5C2

A–10326

2

5. What is DMG? Give their structure.

DMG GßÓõÀ GßÚ? Auß Aø©¨ø£ u¸P.

6. What is chelate ligand? Give one example with structure. öPõkUQøn¨¦ DÛPÒ GßÓõÀ GßÚ? Kº Euõμnzøu

Aø©¨¦hß u¸P.

7. Give the structure of haemoglobin. ï÷©õS÷Íõ¤Ûß Aø©¨ø£ u¸P.

8. Write the effects of Cadmium poison. Põmª¯® Âåzvß £õv¨¦PÒ GÊxP.

9. What is dimethyl silicones? Give their uses. øh«zøuÀ ]¼÷PõßPÒ GßÓõÀ GßÚ? Auß £¯ßPøÍ

u¸P.

10. What is zeolites? What type of zeolite used for water softener â÷¯õø»mkPÒ GßÓõÀ GßÚ? ö©ßÜμõUSu¼À £¯ß£k® â÷¯õø»m ¯õx?

Part B (5 × 5 = 25)


11. (a) Explain the IUPAC nomenclature of coordination compounds.

AønÄ ÷\º©[PøÍ IUPAC •øÓ£i ö£¯›kuø»¨ £ØÔ ÂÍUSP.

Or

(b) Write short note on the factors affecting the stability of complexes.

AønÄ ÷\º©[PÎß {ø»z ußø©ø¯ £õvUS® PõμoPÒ £ØÔ J¸ SÔ¨¦ ÁøμP.

A–10326

3

12. (a) Discuss inner and outer d-orbital hybridisation with one example.

EÒ ©ØÖ® öÁÎ d-Bº¤mhõÀ P»¨¤Úzøu¨ £ØÔ J¸ Euõμnzxhß ÂÍUSP.

Or

(b) Explain - Werners theory of coordination compounds.

AønÄa ÷\º©[PÐUPõÚ öÁºÚ›ß öPõÒøPø¯ ÂÍUSP.

13. (a) Write note on metal carbonyls and its applications. E÷»õP Põº£øÚÀPÒ ©ØÖ® Auß £¯ß£õkPøÍ¨

£ØÔ SÔ¨¦ ÁøμP.

Or

(b) Give brief note on carboranes. Põº÷£õ÷μßPøÍ £ØÔ Â›ÁõÚ ÂÍUP® u¸P.

14. (a) Describe the significance of haemoglobin in living system.

E°›¯À Aø©¨¤ß ï÷©õS÷Íõ¤Ûß •UQ¯zxÁzøu ÂÁ›.

Or

(b) Discuss the role of metal and metal ions in biological system.

E°›¯À Aø©¨¦PÎß E÷»õP® ©ØÖ® E÷»õP A¯ÛPÎß £[PÎ¨ø£ £ØÔ ÂÁ›.

15. (a) Discuss the preparation, structure and properties of diphenyl silicones.

øh¥øÚÀ ]¼U÷PõßPÎß u¯õ›¨¦, Aø©¨¦ ©ØÖ® £s¦PøÍ¨ £ØÔ ÂÍUSP.

Or

(b) Explain the types of zeolites and its uses. â÷¯õø»mkPÎß ÁøPPÒ ©ØÖ® Auß

£¯ßPøÍ¨ £ØÔ ÂÍUSP.

A–10326

4

Part C (3 × 10 = 30)


16. Explain in detail about the optical isomerism of coordination number 4 and 6 coordination compounds with suitable examples.

AønÄ Gs 4 ©ØÖ® 6 EÒÍ AønÄa ÷\º©[PÐUPõÚ JÎ°¯À ©õØÔ¯[PøÍ uS¢u Euõμn[PÐhß Â›ÁõP ÂÍUSP.

17. Discuss brief about crystal field theory of octahedral low and high spin complexes.

uõÌÄ _ÇØ] ©ØÖ® E¯º _ÇØ] Gß•Q AønÄa ÷\º©[PÐUPõÚ £iP¨ ¦» öPõÒøPø¯ Â›ÁõP ÂÁ›.

18. Describe the applications of coordination compounds in quantitative and qualitative analysis.

£s£Ô ©ØÖ® £¸©ÚÔ £S¨£õ´ÄPÎÀ AønÄa ÷\º©[PÎß £¯ß£õmiøÚ¨ £ØÔ ÂÍUSP.

19. (a) Write note on the role of alkali and alkaline earth metals in biological system.

(b) Discuss in detail about chlorophyll and photosynthesis.

(A) E°›¯À Aø©¨¦PÎÀ Põμ ©ØÖ® Põμ©s E÷»õP[PÎß £[QøÚ¨ £ØÔ SÔ¨¦ ÁøμP.

(B) S÷Íõ÷μõ¤À ©ØÖ® JÎ÷\ºUøPø¯¨ £ØÔ öuÎÁõP ÂÁ›.

20. What are silicones? What are the types of silicones? Give their structure and uses.

]¼U÷PõßPÒ GßÓõÀ GßÚ? ]¼U÷PõßPÎß ÁøPPÒ ¯õøÁ? ]¼U÷PõßPÎß Aø©¨¦ ©ØÖ® £¯ßPøÍ u¸P.

——————

A–10041



Fifth Semester

Chemistry

Elective — ANALYTICAL CHEMISTRY



Part A (10 2 = 20)


1. Write any two explosive and toxic chemicals.

H÷uÝ® Cμsk öÁiUS® ußø© Eøh¯ ö£õ¸ÒPøÍ²®

©ØÖ® |a_z ußø©²øh¯ ö£õ¸ÒPøÍ²® GÊxP.

2. What is the first aid for bromine burns in laboratory?

¦÷μõªÚõÀ HØ£k® Põ¯zvØS ö\´¯¨£k® •u¾uÂø¯

GÊxP.

3. What is crystallization? Write any two crystallization methods.

£iP©õUPÀ GßÓõÀ GßÚ? H÷uÝ® Cμsk £iP©õUPÀ

•øÓ°øÚ GÊxP.

4. Define drying of solids.

vs©[PøÍ E»ºzxuÀ Áøμ¯Ö.

Sub. Code 4BCHE1A

A–10041

2

5. Define the term precision.

~m£® Áøμ¯Ö.

6. What is F test?

F ÷\õuøÚ GßÓõÀ GßÚ?

7. State Lambert’s law.

»õ®£ºm Âvø¯ Áøμ¯Ö.

8. What is photoelectric colorimeter?

JÎªß P÷»õ› «mhº GßÓõÀ GßÚ?

9. Define thin layer chromatography.

ö©À¼¯ AkUS Ásn {Ó¨¤›øPø¯ Áøμ¯Ö.

10. Write any two conditions for precipitation.

ÃÌ£iÁõÁuØPõÚ H÷uÝ® Cμsk PõμoPøÍ GÊxP.

Part B (5 5 = 25)


11. (a) Discuss about heat burns and acid burns in laboratory.

B´ÁP[PÎÀ öÁ¨£® ©ØÖ® Aª»® BQ¯ÁØÓõÀ HØ£k® Põ¯[PÒ £ØÔ ÂÍUSP.

Or

(b) Write about the methods to avoid poisoning in laboratory.

B´ÁP[PÎÀ Âå[PøÍ uÂºUS® •øÓPøÍ £ØÔ GÊxP.

A–10041

3

12. (a) Briefly explain steam distillation method.

}μõÂ ÁiPmkuÀ •øÓø¯ Â›ÁõP ÂÍUPÄ®.

Or

(b) Draw the diagram and explain vacuum drying method of solids.

uS¢u £hzxhß vs©[PøÍ GÆÁõÖ öÁØÔh

E»ºzuÀ •øÓ°À E»ºzu»õ® Gß£øu ÂÁ›.

13. (a) Explain the significance of significant figures.

•UQ¯ C»UP[PÎß •UQ¯zxÁzøu ÂÁ›.

Or

(b) With proper example explain F test.

uS¢u GkzxUPõmkhß F ÷\õuøÚø¯ ÂÁ›.

14. (a) Discuss about photoelectric colorimetric method.

JÎ ªß P÷»õ› «mhº •øÓø¯ £ØÔ ÂÁ›UPÄ®.

Or

(b) Draw the diagram of TGA instrument and explain it.

TGA E£Pμnzvß £hzøu Áøμ¢x AuøÚ ÂÍUSP.

15. (a) Explain about how column chromatography is helpful in separation of chemical mixers.

£zv Ásn {Ó©õø» GÆÁõÖ ÷ÁvU P»øÁPøÍ

¤›zöukUP EuÄQÓx Gß£øu ÂÍUPÄ®.

Or

(b) Write the advantages and disadvantages of co precipitation method.

Cøn ÃÌ¨£iuÀ •øÓ°ß |ßø© ©ØÖ® wø©PøÍ

£ØÔ GÊxP.

A–10041

4

Part C (3 10 = 30)


16. Write a brief note on laboratory safety and first aid treatments.

B´ÁP[PÎÀ ö£õxÁõP Pøh¨¤iUP ÷Ási¯ £õxPõ¨¦ ö\¯À•øÓPÒ ©ØÖ® •u¾uÂPÒ £ØÔ Â›ÁõP SÔ¨¦ ÁøμP.

17. With proper diagram explain soxhelt extraction method.

uS¢u £hzxhß \õöíõ÷»m ¤›zx GkzuÀ •øÓø¯ ÂÍUSP.

18. Discuss the following :

(a) Problems involved in straight line

(b) Curve fitting.

¤ßÁ¸ÁÚÁØøÓ ÂÍUSP.

(A) ÷|º÷Põmk ¤μa]øÚPÒ

(B) ÁøÍÄ¨ ö£õ¸zxuÀ.

19. With neat diagram explain DTA diagram of calcium oxalate mono hydrate and write it characteristics.

PõÀ]¯® BU\÷»m ÷©õ÷Úõ øím÷μiß DTA £hzøu Áøμ¢x Auß £s¦PøÍ GÊxP.

20. Briefly explain ascending and descending paper chromatography.

÷©÷»Ö® ©ØÖ® ÷©¼¸¢x RÌ CÓ[S® uõÒ Ásn {Ó¨¤›øP £ØÔ ÂÁ›.

————————

A–10328



Fifth Semester

Chemistry

Elective — AGRICULTURAL CHEMISTRY



Part A (10 × 2 = 20)


1. Define pedagenesis. How is it related to soil profile?

“ö£hõ öáÛêì” Áøμ¯Ö. Ax ©s ÂÁμzxhß

GÆÁõÖ öuõhº¦¨£kzu¨£kQÓx.

2. Mention any two significance of soil fertility.

©sÁÍ® £ØÔ H÷uÝ® Cμsk •UQ¯zxÁ® SÔ¨¤kP.

3. What are secondary fertilizers? Give example.

Cμshõ® {ø» Eμ[PÒ GßÓõÀ GßÚ? GkzxUPõmk

u¸P.

Sub. Code 4BCHE1B

A–10328

2

4. Define complex fertilizer. Give one example.

Põ®¨éPÒ Eμ[PÒ – Áøμ¯Ö. H÷uÝ® J¸ GkzxUPõmk

u¸P.

5. Mention the main technique behind formation of organic

manures.

P›© ©mSμ® E¸ÁõUSu¼ß •UQ¯ ÁÈ•øÓ £ØÔ TÖP.

6. What are zinc enriched organics? Give example.

xzu|õP® ö\›Äm£mh P›® Eμ® GßÓõÀ GßÚ?

Euõμn® u¸P.

7. Give full form of DDT. Draw the structure.

DDT –ß •Ê Â›Ä u¸P. Auß Aø©¨¤øÚ ÁøμP.

8. Mention any two uses of insecticides.

§a]UöPõÀ¼ ©¸zvß H÷uÝ® Cμsk £¯ß£õmiøÚ

SÔ¨¤kP.

9. Define Boredeaux mixture.

÷£õºmi¯õUì P»¨¦ £ØÔ Áøμ¯Ö.

10. Give any two examples of organic herbicides.

P›© PøÍUöPõÀ¼PÒ £ØÔ H÷uÝ® Cμsk Euõμn®

u¸P.

A–10328

3

Part B (5 × 5 = 25)


11. (a) Discuss the significance of physical properties of soil on plant growth.

uõÁμ[PÎß ÁÍºa]US ©s \õº¢u ö£ÍvP £s¦PÎß ©PzxÁ® £ØÔ ÂÍUSP.

Or

(b) Describe the formation of humus in detail.

©s ©mS E¸Áõuø» ÂÁ›.

12. (a) Compare and contrast complex and mixed fertilizers.

Põ®£éPÒ ©ØÖ® P»¨¦ Eμ[PÒ Cøh÷¯ JØÖø© ©ØÖ® ÷ÁØÖø© £ØÔ ÂÁ›.

Or

(b) Describe in detail role of micronutrient fertilizers in plant growth and development.

uõÁμ¨ ö£¸UP® ©ØÖ® ÁÍºa]°À ¡s Fmh Eμ[PÎß £[QøÚ ÂÍUP©õP GÊxP.

13. (a) Define Compost. Explain compositing of coir pith and sugar cane trash.

Põ®÷£õìm – Áøμ¯Ö. öußøÚ |õº ©ØÖ® P¸®¦ \UøP £¯ß£kzv Põ®÷£õìm u¯õ›US® •øÓø¯ ÂÍUSP.

Or

(b) Enumerate the advantages and disadvantages of green manuring.

£_¢uõÌ Eμ[PÎß |ßø©PÒ ©ØÖ® wø©PøÍ Á›ø\¨£kzxP.

A–10328

4

14. (a) Write a short note on inorganic pesticides.

PÛ© §a]UöPõÀ¼PÒ £ØÔ ]Ö SÔ¨¦ ÁøμP.

Or

(b) Discuss the impact of pesticides on soil and plants.

©s ©ØÖ® uõÁμ[PÒ «uõÚ §a]UöPõÀ¼PÎß uõUP® £ØÔ ÂÍUSP.

15. (a) Write a short notes on dithiocarbanates.

øhzu÷¯õPõº£÷Úm £ØÔ ]Ö SÔ¨¦ ÁøμP.

Or

(b) Write a short notes on 2, 4D–phridinine compounds.

2, 4–i– ¤›øhß ÷\º©[PÒ £ØÔ ]Ö SÔ¨¦ ÁøμP.

Part C (3 × 10 = 30)


16. (a) Briefly describe : (1 + 1 + 1)

(i) Soil air

(ii) Pore space

(iii) Weathering process.

(b) Write a short notes on : (3 + 4)

(i) Factors involving soil formation

(ii) Biological properties of soil.

A–10328

5

(A) _¸UP©õP ÂÁ› :

(i) ©soß PõØÖ

(ii) xøÍ Ch®

(iii) Põ» {ø»¯õP ö\¯À•øÓ

(B) ]Ö SÔ¨¦ ÁøμP :

(i) ©s E¸ÁõUPvß PõμoPÒ

(ii) ©soß E°›°¯À £s¦PÒ.

17. Write a brief note on nitrogen fixing biofertilizers.

ø|mμáß {ø»|õmk® E°º Eμ[PÒ £ØÔ Â›ÁõÚ SÔ¨¦ ÁøμP.

18. Discuss the safety measures in analysis and handling of pesticides.

§a]UöPõÀ¼PÒ £¯ß£kzx®÷£õx ©ØÖ® Bμõ²®÷£õx Pøh¨¤iUP ÷Ási¯ £õxPõ¨¦ |hÁiUøP £ØÔ ÂÍUSP.

19. (a) Write a short notes on integrated nutrient management.

(b) Describe the preparation of different fertilizer mixtures. (5 + 5)

(A) J¸[Qøn¢u Fmh\zx ÷©»õsø© £ØÔ ]Ö SÔ¨¦ ÁøμP.

(B) öÁÆ÷ÁÖ Eμ P»øÁ u¯õ›¨¦ •øÓ £ØÔ ÂÁ›.

A–10328

6

20. (a) Write a short notes on inorganic herbicides. (5)

(b) Write a short notes on sulphur and mercury compounds as inorganic fungicides. (5)

(A) PÛ© PøÍöPõÀ¼PÒ £ØÔ ]Ö SÔ¨¦ ÁøμP.

(B) \À£º ©ØÖ® £õuμ\® ÷\º©[PÒ P›© §gø\ öPõÀ¼¯õP £¯ß£õmiøÚ £ØÔ ]Ö SÔ¨¦ ÁøμP.

————————

A–10042



Fifth Semester

Chemistry

Elective — INDUSTRIAL CHEMISTRY



Part A (10 2 = 20) Answer all questions.

1. Define pigment. Give any two examples for pigments.

{ÓªPÒ Áøμ¯Ö. H÷uÝ® Cμsk {ÓªPøÍ GÊxP.

2. Write the constituents of enamels.

GÚõ©À £Sv ö£õ¸mPøÍ GÊxP.

3. Write the classification of ceramics.

ö\μõªUQß ÁøP¨£õmøh GÊxP.

4. List the types of glasses.

Psnõi°ß ÁøPPøÍ Á›ø\¨£kzxP.

5. Write constituents of soap.

÷\õ¨¤ß £Sv ö£õ¸mPøÍ GÊxP.

6. What are anionic detergents?

÷|μ¯Û AÊUS }UQPÒ GßÓõÀ GßÚ?

7. Define molasses.

öÁÀ»¨£õSPÒ Áøμ¯Ö.

Sub. Code 4BCHE2A

A–10042

2

8. Write any four uses of NPK.

NPK ß |õßS £¯ßPøÍ GÊxP.

9. List out the uses of adhesives?

£ø\PÎß £¯ßPøÍ TÖP.

10. Draw the structure of nitrocellulose.

ø|m÷μõ ö\À¾÷»õêß £hzøu ÁøμP.

Part B (5 5 = 25) Answer all questions.

11. (a) Discuss about the requisites for a good paint. |À» Áºn[PÐUPõÚ ÷uøÁPøÍ ÂÁõvUPÄ®.

Or

(b) Briefly explain the characteristics of varnishes and write their uses.

ÁõºÛèPÎß £s¦PøÍ ÂÁ›zx Auß £¯ßPøÍ GÊxP.

12. (a) Discuss about the types, composition and uses of Portland cement.

÷£õºm÷»sm ]ö©siß ÁøPPÒ, P»øÁ¨ ö£õ¸mPÒ ©ØÖ® £¯ß£õkPÒ BQ¯ÁØøÓ¨ £ØÔ GÊxP.

Or

(b) Explain the raw materials and manufacture of ceramics.

ö\μõªUQß ‰»¨ö£õ¸mPÒ ©ØÖ® u¯õ›¨ø£ £ØÔ ÂÍUSP.

13. (a) Write a brief note on anionic and cationic detergents.

Gvμ¯Û ©ØÖ® ÷|μ¯Û AÊUS }UQPÒ BQ¯ÁØøÓ¨ £ØÔ _¸UP©õP GÊxP.

Or

A–10042

3

(b) Discuss about the fire clay bricks.

w PÎ©s ö\[PØPÒ £ØÔ ÂÁõvUPÄ®.

14. (a) Explain how sugar is manufactured from molasses.

öÁÀ»¨£õQÀ C¸¢x \ºUPøμ GÆÁõÖ u¯õ›UP¨£kQÓx Gß£øu ÂÍUSP.

Or

(b) Elaborate about vinegar and ethanol manufacturer in sugar industries.

\ºUPøμ Bø»PÎÀ ÂÛPº ©ØÖ® GzuÚõÀ GÆÁõÖ u¯õ›UP¨£kQÓx Gß£øu ÂÁ›.

15. (a) Briefly explain the following explosives :

(i) Cordite

(ii) Dynamite.

¤ßÁ¸® öÁi¨ö£õ¸mPøÍ ÂÍUSP.

(i) Põºim

(ii) øhÚø©m

Or

(b) Discuss about protein and starch adhesives.

¦μu £ø\PÒ ©ØÖ® ìhõºa £ø\PÒ £ØÔ ÂÍUSP.

Part C (3 10 = 30)


16. Write about chrome green white lead pigments. Briefly explain the classification and applications of plants.

S÷μõ® £aø\PÒ ©ØÖ® öÁÒøÍ ö»m {ÓªPÒ £ØÔ GÊxP. Áºn[PÎß ÁøP¨£õk ©ØÖ® £¯ßPøÍ £ØÔ Â›ÁõP ÂÁ›.

A–10042

4

17. Write a brief note on types, manufacture, physical and chemical properties of glasses.

Psnõi°ß ÁøPPÒ, u¯õ›¨¦, C¯Ø£s¦PÒ ©ØÖ® ÷Áv¨ £s¦PøÍ £ØÔ GÊxP.

18. (a) Explain briefly about cationic and anionic detergents.

(b) Write a short note on shampoo.

(A) ÷|μ¯Û ©ØÖ® Gvμ¯Û AÊUS }UQPÒ £ØÔ Â›ÁõP ÂÁ›UPÄ®.

(B) åõ®¦PÒ £ØÔ SÔ¨¦ ÁøμP.

19. Describe about preparation and uses of CAN and Urea fertilizers.

CAN ©ØÖ® ³›¯õ Eμ[PÎß u¯õ›¨¦ ©ØÖ® £¯ß£õkPøÍ ÂÁ›.

20. (a) Discuss about the following explosives.

(i) nitrocellulose

(ii) TNT.

(b) Explain about applications of enamels.

(A) ¤ßÁ¸® öÁi¨ö£õ¸mPÒ £ØÔ ÂÁõvUPÄ®.

(i) ø|m÷μõ ö\À¾÷»õì

(ii) TNT

(B) GÚõ©¼ß £¯ß£õkPøÍ ÂÍUPÄ®.

————————

A–9835



Fifth Semester

Chemistry

Elective – MEDICINAL CHEMISTRY

(CBCS – 2014 Batch)


Part A (10 2 = 20)

Answer ALL the questions.

1. Write any two routes of administrating drugs.

©¸¢x EmöPõÒu¼ß H÷uÝ® Cμsk ÁÈPøÍ GÊxP.

2. Define drug metabolism.

©¸¢x ÁÍº]øu ©õØÓzøu Áøμ¯Ö.

3. Give any two advantages of EEG.

EEG –°ß H÷uÝ® Cμsk |ßø©PøÍ u¸P.

4. Draw the block digram of ECG.

ECG–°ß PmhÁøμ£hzøu ÁøμP.

5. Write down the composition of blood.

Cμzuzvß EmTÖPøÍ GÊxP.

6. Give any two important rules of first aid.

•u¾uÂ°ØPõÚ Cμsk •UQ¯ ÂvPøÍ u¸P.

Sub. Code 4BCHE2B

A–9835

2

7. Draw the structure of Vitamin B2.

øÁmhªß B2 –ß Aø©¨ø£ ÁøμP.

8. Write the treatment for Malaria.

©÷»›¯õÂØPõÚ ]Qaø\ £ØÔ GÊxP.

9. Mention the adverse effects of chlorambusil.

Q÷Íõμ®£ê¼ß w¯ ÂøÍÄPøÍ SÔ¨¤kP.

10. What are Psychotegenic drugs? Give example.

ø\÷Põ÷hõöáÛU ©¸¢x GßÓõÀ GßÚ? Euõμn® u¸P.

Part B (5 5 = 25)

Answer ALL the questions, choosing either (a) or (b).

11. (a) Explain the nomenclature of drugs with suitable examples.

©¸¢xPÒ ö£¯›kuø» uS¢u Euõμn[PÒ öPõsk ÂÍUSP.

Or

(b) Give a note on digestion and absorption of fats.

öPõÊ¨¦ ö\›zuÀ ©ØÖ® EÔg_uÀ £ØÔ SÔ¨¦ ÁøμP.

12. (a) Explain the principle and analysis of -ray.

X – Pv›ß uzxÁ® ©ØÖ® £S¨£õ´øÁ ÂÍUSP.

Or

(b) Describe the blockdiagram and measurement of ultrasonic scan.

AÀmμõ\õÛU ì÷PÛ[Qß PmhÁøμ£h® ©ØÖ® AÍÂk® •øÓø¯ ÂÁ›.

A–9835

3

13. (a) How will you determine blood urea by Urease method?

²›÷¯ì •øÓ¨£i Cμzuzv¾ÒÍ ³›¯õøÁ GÆÁõÖ

AÍÂkÁõ´?

Or

(b) Write notes on poisons and their antidotes.

Âå® ©ØÖ® Âå•ÔÄPÒ £ØÔ SÔ¨¦ GÊxP.

14. (a) Describe the structure, function and uses of Sulphanilide.

\À¨£õÛø»iß Aø©¨¦, ö\¯À£õk ©ØÖ®

£¯ßPøÍ £ØÔ ÂÁ›.

Or

(b) Give the properties and uses of important Indian Medical Plants.

•UQ¯©õÚ C¢v¯ ©¸zxÁ uõÁμ[PÎß £s¦PÒ

©ØÖ® £¯ßPøÍ u¸P.

15. (a) Give the advantages and disadvantages as anaesthetic of the following, (i) Vinyl ether (ii) Halothane

RÌUPshÁØÔß EnºÄ }UQ¯õPa ö\¯À£ku¼À

£¯ßPÒ ©ØÖ® SøÓ£õkPøÍz u¸P. (i) ÂøÚÀ Duº

(ii) íõ÷»õ÷uß.

Or

(b) Explain the causes and treatment of cancer.

¦ØÖ÷|õ´UPõÚ Põμn® ©ØÖ® Auß ]QaøP £ØÔ

ÂÍUSP.

A–9835

4

Part C (3 10 = 30)


16. Describe the theories of drug action.

©¸¢x ö\¯À£õmiß ÷Põm£õkPÒ £ØÔ ÂÁ›.

17. Discuss the principle, block diagram, measurement and analysis of MRI Scan.

MRI ì÷PÛß uzxÁ®, PmhÁøμ£h®, AÍÂkuÀ ©ØÖ® £S¨£õ´Ä £ØÔ ÂÁõv.

18. (a) Give one method of estimation of haemoglobin in human blood.

(b) Write a brief note on the determination of cholestrol in serum.

(A) ©Ûu Cμzuzv¾ÒÍ ï÷©õS÷Íõ¤øÚ {ºn°US® •øÓ JßøÓz u¸P.

(B) ^μzv¾ÒÍ öPõ»ìhμõø» AÍÂk® •øÓø¯ £ØÔ _¸UP©õP GÊxP.

19. (a) Discuss the structure, function, dosage and uses of glyceryltrinitrate.

(b) Give notes on digestive and respirative disorder diseases and their treatment.

(A) UÎ\øμÀ møμø|m÷μmiß Aø©¨¦, ö\¯À£õk, AÍøÁ ©ØÖ® £¯ßPøÍ £ØÔ ÂÁõv.

(B) ö\›©õÚ ©ØÖ® _Áõ\U ÷PõÍõÔÚõÀ EshõS® ÷|õ´PÒ ©ØÖ® AuØPõÚ ©¸zxÁzøu¨ £ØÔ SÔ¨¦ u¸P.

20. Discuss in detail on structure, properties and uses of penicillin and streptomycin.

ö£Û]¼ß ©ØÖ® ìöh¨÷hõø©]Ûß Aø©¨¦, £s¦PÒ ©ØÖ® £¯ßPøÍ £ØÔ Â›ÁõP ÂÁõv.

————————

A–9683

B.Sc. DEGREE EXAMINATION, APRIL 2021 &Supplementary/Improvement/Arrear Examinations

Sixth Semester

Chemistry

ORGANIC CHEMISTRY – III



Section A (10 × 2 = 20)


1. What is Electromagnetic spectrum? ªßPõ¢u Aø»UPØøÓ GßÓõÀ GßÚ?

2. Calculate the number of signals for the following compounds:

(a) 223 NHCHCH (b) Acetone ¤ßÁ¸® ‰»UTÖPÐUS NMR \ªUøbPÒ PnUQhÄ®.

(A) 223 NHCHCH (B) A]m÷hõß

3. Define free radicals. uÛ EÖ¨¦PÒ Áøμ¯Ö.

4. Write the curtius rearrangement. Pºi¯ì Ch©õØÓ ÂøÚø¯ GÊxP.

5. Give the preparation of furan. L¤³μõß u¯õ›¨ø£ GÊxP.

Sub. Code 4BCH6C1

A–9683

2

6. What is isoprene rule? I÷\õ¤›ß Âv GßÓõÀ GßÚ?

7. Write the methods of green synthesis. £_ø© öuõS¨¦ ÁøPPøÍ GÊxP.

8. Give the uses of indigo. Csi÷Põ \õ¯zvß £¯ßPøÍ GÊxP.

9. What is antibiotics? Bßmi£÷¯õmiUì GßÓõÀ GßÚ?

10. Which are the water soluble vitamins? }›À Pøμ²® øÁmhªßPÒ GøÁ?

Section B (5 × 5 = 25)


11. (a) Discuss the study of intermolecular and intra molecular hydrogen bondings in IR spectroscopy.

‰»UTÖPÐUS Cøh÷¯¯õÚ ©ØÖ® ‰»UTÖPÐUS EÒÍõÚ øímμáß ¤øn¨ø£ PshÔ¯ AP]P¨¦ {øÓ{ø»©õÛ GÆÁõÖ EuÄQÓx?

Or

(b) Discuss the following terms:

(i) Chemical shift.

(ii) Spin spin coupling.

(iii) Coupling constant.

¤ß Á¸ÁÚ £ØÔ ÂÍUSP.

(i) ÷Áv |PºÄ.

(ii) _ÇØ] _ÇØ] CønÄ.

(iii) CønÄ ©õÔ¼.

A–9683

3

12. (a) Explain Nitro-aci-nitro tautomerism.

ø|m÷μõ&A]&ø|m÷μõ C¯[S \©{ø»ø¯ ÂÍUSP.

Or

(b) Discuss about photochemical reaction of olefins.

J¼¥ßPÎß JÎ÷Áv ÂøÚø¯¨ £ØÔ GÊxP.

13. (a) Give the preparation of quinoline and imidazole.

S°÷Úõ¼ß ©ØÖ® Cªh÷\õÀ u¯õ›¨ø£ £ØÔ GÊxP.

Or

(b) Write the synthesis of geraniol.

öáμõÛ¯õ¼ß öuõS¨ø£ GÊxP.

14. (a) Illustrate about solid phase organic synthesis.

vs© {ø» P›© öuõS¨ø£ £ØÔ ÂÍUSP.

Or

(b) Write the preparation and uses of malachite green.

ö©»õø\m £aø\°ß u¯õ›¨¦ ©ØÖ® £¯ßPøÍ GÊxP.

15. (a) Write the applications of sulphadiazine and chloroquine.

\À£õøh¯]ß ©ØÖ® S÷Íõ÷μõS°ß BQ¯ÁØÔß £¯ßPøÍ GÊxP.

Or

(b) Give the structure and functions of progesterone.

¨÷μõöáìm÷μõÛß Aø©¨¦ ©ØÖ® ö\¯À£õkPøÍ GÊxP.

A–9683

4

Section C (3 × 10 = 30)


16. (a) What is finger print region in IR? (3) (b) Explain the NMR spectrum of ethyl alcohol. (7)

(A) APa]Á¨¦ {øÓ {ø»©õÛÀ øP÷μøP £Sv GßÓõÀ GßÚ?

(B) GzvÀ BÀPíõ¼ß NMR Áøμ£hzøu Áøμ¢x ÂÍUSP.

17. Write the pinacol pinacolone and Benzil Benzylic acid rearrangements. ¤ßÁ¸® Ch©õØÔ ÂøÚPøÍ GÊxP. ¤ÚU÷PõÀ & ¤ÚU÷Põ»ß ©ØÖ® ö£ß]À & ö£ß]¼U A©»®.

18. Write the structure elucidation and synthesis of piperine. ¤¨ŸÛß ÁiÁø©¨ø£ {ÖÄuÀ ©ØÖ® öuõS¨ø£ GÊxP.

19. Briefly discuss the principles of green chemistry. £_ø© ÷Áv¯¼ß •UQ¯ uzxÁ[PøÍ Â›ÁõP ÂÁ›UPÄ®.

20. (a) Write a short notes on Salvarsan-606. (3) (b) Give the structure and uses of Streptomycin. (4) (c) Give the sources and structure of Vitamin-C. (3)

(A) \ÀÁõº\ß&606 £ØÔ SÔ¨¦ ÁøμP. (B) ìöh¨ì÷hõø©\Ûß Aø©¨ø£ Áøμ¢x Auß

£¯ßPøÍ GÊxP.

(C) øÁmhªß C ß Aø©¨ø£ Áøμ¢x Auß ‰»õuõμ[PøÍ GÊxP.

————————

A–9684



Sixth Semester

Chemistry

PHYSICAL CHEMISTRY – III



Part A (10 × 2 = 20)


1. State Grothus dropper law.

S÷μõzuì&¤μõ¨£º Âvø¯ TÖ.

2. What is chemiluminescence?

÷Áv JÎºuÀ GßÓõÀ GßÚ?

3. Define : Equivalent Conductance.

Áøμ¯Ö : \©õÚ PhzxvÓß

4. Define : pH

Áøμ¯Ö : pH

5. What is Salt bridge?

E¨¦£õ»® GßÓõÀ GßÚ?

Sub. Code

4BCH6C2

A–9684

2

6. What are concentration cells?

Ahº ªßP»[PÒ GßÓõÀ GßÚ?

7. What are fuel cells?

G›ö£õ¸Ò ªßP»[PÒ GßÓõÀ GßÚ?

8. Define : Over Voltage.

Áøμ¯Ö : ªøP ªßÚÊzu®

9. What is phase rule?

{ø»ø© Âv GßÓõÀ GßÚ?

10. What are incongruent melting point?

ö£õ¸zu©ØÓ E¸SuÀ ¦ÒÎ GßÓõÀ GßÚ?

Part B (5 × 5 = 25)


11. (a) Discuss the photochemical formation of HCl reaction.

JÎ ÷Áv ÂøÚ ‰»® HCl ‰»UTÖ E¸ÁõSuø» ÂÁ›.

Or

(b) Write the comparison between photochemical and thermal reactions.

JÎ÷Áv ÂøÚPÐUS®, öÁ¨£ ÷ÁvÂøÚPÐUS® Cøh÷¯²ÒÍ ÷ÁÖ£õkPøÍ GÊxP.

12. (a) Write note on degree of hydrolysis.

}μõØ£SzuÀ Ãu® £ØÔ SÔ¨¦ ÁøμP.

Or

(b) Discuss the applications of buffer solution.

uõ[PÀ Pøμ\ÀPÎß £¯ß£õkPøÍ ÂÁ›.

A–9684

3

13. (a) Explain the conditions and for reversible cell.

«ß ªßP»zvØPõÚ {£¢uøÚPøÍ ÂÍUSP.

Or

(b) Write note on glass electrode and Calomel electrode.

Psnõi ªß•øÚ ©ØÖ® P÷»õ©À ªß•øÚ £ØÔ SÔ¨¦ ÁøμP.

14. (a) Discuss about hydrogen and oxygen fuel cells.

øímμáß ©ØÖ® BUêáß G›ö£õ¸Ò ªßP»® £ØÔ ÂÁ›.

Or

(b) Write note on concentration polarization.

Ahº •øÚÁõUP® £ØÔ SÔ¨¦ ÁøμP.

15. (a) Derive Gibbs Phase rule.

Q¨ì {ø»ø© Âvø¯ Á¸Â.

Or

(b) Explain about Zn-Mg system.

Zn-Mg ß Aø©¨¦ £ØÔ ÂÍUSP.

Part C (3 × 10 = 30)


16. Explain the following :

(a) Stark-Einstein law

(b) Phosphorescence

(c) Chemiluminescence

(d) Bioluminescence

(e) Photosensitization

A–9684

4

¤ßÁ¸ÁÚÁØøÓ ÂÍUSP.

(A) ìhõºU&Ißìjß Âv

(B) {ßÖ JÎºuÀ

(C) ÷Áv JÎºuÀ

(D) E°º JÎºuÀ

(E) JÎ EnºÅmhÀ

17. Discuss the applications of solubility product in qualitative analysis.

AÍÁÔ£S¨£õ´ÂÀ PøμvÓß ö£¸UPzvß £¯ß£õkPøÍ ÂÁ›.

18. Explain the calculation of H,S,G ΔΔΔ and K from EMF data.

EMF AÍÃkPÎ¼¸¢x H,S,G ΔΔΔ ©ØÖ® K PnUQkuø» ÂÍUSP.

19. Give an account of Acid-Base titration with example.

GkzxUPõmkPÐhß Aª»&Põμ uμ® £õºzuÀPøÍ £ØÔ ÂÍUP® u¸P.

20. Derive the thermodynamic derivation of distribution law. Mention its applications.

£[Rmk Âvø¯ öÁ¨£ C¯UPÂ¯À •øÓ ‰»® Á¸Â. Auß £¯ß£õkPøÍ SÔ¨¤kP.

————————

A–9685



Sixth Semester

Chemistry

Elective: POLYMER CHEMISTRY

(CBCS – 2014 batch)


Part A (10 × 2 = 20)


1. Define natural polymers.

C¯ØøP £»£iPøÍ Áøμ¯Ö.

2. What are anionic polymers?

Gvº A¯Û£»£iPÒ GßÓõÀ GßÚ?

3. Define glass transition temperature.

Psnõi ©õØÓ öÁ¨£{ø»ø¯ Áøμ¯Ö.

4. What are linear and cross linked polymers?

÷|º ©ØÖ® SÖUS¨ ¤øn¨¦¨ £»£iPÒ GßÓõÀ GßÚ?

5. Give the preparation of sebacic acid.

ö\£õ]U Aª»zvß u¯õ›¨ø£z u¸P.

6. What are homo and co polymers?

Jzu ©ØÖ® Cøn£»£iPÒ GßÓõÀ GßÚ?

Sub. Code 4BCHE3A

A–9685

2

7. Define isoprene rule.

I÷\õ¤›ß Âvø¯ Áøμ¯Ö.

8. What are the uses of PVA?

PVA–ß £¯ßPÒ ¯õøÁ?

9. What are the uses of terylene?

öhº¼Ûß £¯ßPÒ ¯õøÁ?

10. Define thermosetting polymers.

öuº÷©õ ö\mi[ £»£iPøÍ Áøμ¯Ö.

Part B (5 × 5 = 25)

Answer all questions, choosing either (a) or (b).

11. (a) Explain the suspension polymerisation technique.

öuõ[PÀ £»£i¯õUP¼ß ~m£zøu ÂÍUSP.

Or

(b) What are tactic, isotactic and atactic polymers?

÷hUiU, I÷\õ÷hUiU ©ØÖ® H÷hUiU £»£iPÒ GßÓõÀ GßÚ?

12. (a) Describe mechanical degradation of polymers.

C¯¢vμ •øÓ ]øuÄ £ØÔ ÂÁ›.

Or

(b) Discuss the concept of number average and weight average molecular weight.

£»£iPÎß Gs \μõ\› ©ØÖ® {øÓ \μõ\› ‰»UTÖ GøhPÒ £ØÔ ÂÁõv.

A–9685

3

13. (a) Discuss the kinetics of free radical polymerisation. uÛEÖ¨¦ P»£i¯õUP¼ß C¯UPõØÓø» £ØÔ

ÂÁõv.

Or

(b) Give the preparation of Adipic acid and acrylo nitrile.

Ai¨¤U Aª»® ©ØÖ® AU›÷»õ ø|møμÀ BQ¯ÁØÔß u¯õ›¨ø£z u¸P.

14. (a) Write the preparation and uses of polypropylene and polystyrene.

£õ¼¦÷μõ£¼ß ©ØÖ® £õ¼ìøh›Ûß u¯õ›¨“¦ ©ØÖ® £¯ßPøÍ GÊxP.

Or

(b) Give the preparation and uses of polyurethane and silicone rubbers.

£õ¼³›÷uß ©ØÖ® ]¼U÷Põß μ¨£›ß u¯õ›¨¦ ©ØÖ® £¯ßPøÍ GÊxP.

15. (a) Write shot notes on amine resins and silicone resins.

A«ß öμ]ßPÒ ©ØÖ® ]¼U÷Põß öμ]ßPÒ £ØÔ ]Ö SÔ¨¦ GÊxP.

Or

(b) Discuss the cellulose acetate and cellulose nitrate.

ö\À¾÷»õì A]÷hm ©ØÖ® ö\À¾÷»õì ø|m÷μõm £ØÔ ÂÁõv.

Part C (3 × 10 = 30)


16. Discuss the mechanism of free radical polymerisation. uÛ EÖ¨¦ £»£i¯õUP¼ß ÂøÚÁÈ •øÓø¯ ÂÍUSP.

A–9685

4

17. Explain the following:

(a) Thermal degradation

(b) Hydrolytic degradation RÌPshÁØøÓ £ØÔ ÂÍUSP.

(A) öÁ¨£a ]øuÄÖuÀ

(B) }μõØ¤ÍÄ ]øuÄÖuÀ

18. Give the preparation of the following

(a) Capro lactum

(b) Hexamethylene diamine

(c) MMA. (A) ÷P¨÷μõ ÷»Uh®

(B) öPa\õ ö©zv¼ß øh¯ªß

(C) MMA BQ¯ÁØÔß u¯õ›¨ø£z u¸P.

19. Write the preparation and uses of

(a) PVC

(b) Buna-s

(c) Neoprene

(A) PVC

(B) §Ý–S (C) {÷¯õ¤›ß BQ¯ÁØÔß u¯õ›¨¦ ©ØÖ® £¯ßPøÍ

GÊxP.

20. Write the preparation and uses of

(a) Nyclon

(b) Nyclon-66

(c) Viscose rayon. (A) ø|»õß

(B) ø|»õß–66

(C) Âì÷£õì ÷μ¯õß BQ¯ÁØÔß u¯õ›¨¦ ©ØÖ® £¯ßPøÍ GÊxP.

————————

A–10161

U.G. DEGREE EXAMINATION, APRIL 2021 &


Chemistry

Allied — GENERAL CHEMISTRY – I

(CBCS 2014 onwards)


Part A (10 2 = 20)


1. Calculate how many sigma and pi bonds present benzene.

ö£ß^ÛÀ GzuøÚ ø£ ©ØÖ® ]U©õ ¤øn¨¦PÒ EÒÍÚ GßÖ PnUQkP.

2. Define hydrogen bonding.

øímμáß ¤øn¨ø£ Áøμ¯Ö.

3. What is lattice energy?

£iP BØÓÀ GßÓõÀ GßÚ?

4. State Bancroft’s rule

£õßQμõ¨m Âvø¯ TÖP.

5. Write the types of metal refining methods.

E÷»õP _zvP›¨¦ •øÓPøÍ GÊxP.

Sub. Code 4BCHA1

A–10161

2

6. What are alloys?

E÷»õP P»øÁPÒ GßÓõÀ GßÚ?

7. Define half-life period.

Aø\ B²mPõ»® Áøμ¯Ö.

8. Write the paper chromatography methods.

uõÒ Ásn{Ó¨ ¤›øP°ß •øÓPøÍ GÊxP.

9. What is enthalpy?

AhUP öÁ¨£® (GßuõÀ¤) GßÓõÀ GßÚ?

10. State Hess's law.

ïì Âvø¯ TÖP.

Part B (5 5 = 25)


11. (a) Discuss about hybridisation of acetylenes.

A]mi¼Ûß CÚUP»¨¦ £ØÔ ÂÁ›.

Or

(b) Write the preparation of ozone and hydrogen peroxides.

øímμáß ö£μõUø\k ©ØÖ® K÷\õß BQ¯ÁØÔß u¯õ›¨ø£ GÊxP.

12. (a) Write a brief note on following :

(i) Surface tension

(ii) Semiconductors.

¤ßÁ¸ÁÚ £ØÔ Â›ÁõP GÊxP :

(i) £μ¨¦ PÁºa] Âø\

(ii) SøÓPhzvPÒ.

Or

(b) Discuss about emulsions.

£õÀ©® £ØÔ ÂÁ›.

A–10161

3

13. (a) Write a brief note on alloys of nickel.

{UP¼ß E÷»õPUP»øÁ £ØÔ J¸ SÔ¨¦ ÁøμP.

Or

(b) Explain about synthesis and uses of silicones.

]¼UPõßPÎß u¯õ›¨¦ ©ØÖ® £¯ß£õkPøÍ ÂÁ›.

14. (a) What is first order reaction explain with example?

•uÀuμ ÂøÚø¯z uS¢u GkzxUPõmkhß ÂÍUSP.

Or

(b) With diagram explain column chromatography.

£zv Ásn {Ó¨¤›øPø¯ uS¢u £hzxhß ÂÍUSP.

15. (a) Discuss about reversible and irreversible thermodynamic processes.

«Ð® ©ØÖ® «Íõ öÁ¨£ C¯UPÂ¯À £ØÔ ÂÁ›.

Or

(b) State first law of thermodynamics and derive it.

öÁ¨£ C¯UPÂ¯¼ß •uÀ Âvø¯ TÔ AuøÚ u¸Â.

Part C (3 10 = 30)


16. (a) Explain VSPER theory. (7+3)

(b) Uses of LiAlH4.

(A) VSPER ÷Põm£õkPøÍ ÂÁ›.

(B) LiAlH4 £¯ß£õkPøÍ GÊxP.

A–10161

4

17. (a) Differentiate crystalline and amorphous solid. (5+5)

(b) Discuss about temperature effect on surface tension.

(A) £iPzußø© Eøh¯ ©ØÖ® £iP ußø© AØÓ vs©[PøÍ ÷ÁÖ£kzxP.

(B) £μ¨¦U PÁºa] Âø\°À öÁ¨£® HØ£kzx® ÂøÍøÁ¨ £ØÔ ÂÁ›.

18. Discuss about different types of metal refining methods.

£À÷ÁÖ ÁøP¯õÚ E÷»õP _zvP›¨¦ •øÓPøÍ £ØÔ Â›ÁõP GÊxP.

19. Write a brief note on ascending and descending paper chromatography.

RÈ¸¢x ÷©÷»Ö® ©ØÖ® ÷©¼¸¢x RÈÓ[S® uõÒ Ásn {Ó¨¤›øP £ØÔ GÊxP.

20. Write a brief note on physical significance of entropy.

AP öÁ¨£zvß C¯Ø¤¯À •UQ¯zxÁ[PøÍ ÂÁ›.

————————

A–10162



Chemistry

Allied — GENERAL CHEMISTRY – II



Part A (10 1½ = 15)


1. What is coordination compounds?

AønÄa ÷\º©[PÒ GßÓõÀ GßÚ?

2. Write the structure of EDTA.

EDTA&ß Aø©¨ø£ GÊxP.

3. Define Isoelectric Point.

I÷\õG»Um›U ¦ÒÎ Áøμ¯Ö.

4. Give the chemical name of Vitamin B12. Mention its sources.

øÁmhªß B12&ß ÷Ávö£¯øμ u¸P. Auß ‰»zøu SÔ¨¤kP.

5. What is meant by chemotheraphy?

÷Áv ]Qaø\ GßÓõÀ GßÚ?

6. Define Antiseptics. Give an example.

Q¸ª|õ]ÛPÒ Áøμ¯Ö. Kº Euõμn® öPõk.

7. Define Quantum yield.

SÁõsh® ÂøÍa\À Áøμ¯Ö.

Sub. Code 4BCHA2

A–10162

2

8. What is photo isomerisation?

¦øP£h I÷\õ©øμ÷\\ß GßÓõÀ GßÚ?

9. What is specific conductance?

{¯© PhzxvÓß GßÓõÀ GßÚ?

10. What is common ion effect?

ö£õx A¯Û ÂøÍÄ GßÓõÀ GßÚ?

Part B (5 3 = 15)


11. (a) Write note on Werner’s theory of coordination compounds.

AønÄ ÷\º©[PÐUPõÚ öÁºÚ›ß öPõÒøPø¯ £ØÔ SÔ¨¦ GÊxP.

Or

(b) Give short note on EAN rule.

EAN Âvø¯ £ØÔ SÔ¨¦ u¸P.

12. (a) What is amino acids? Give their classification with examples.

Aª÷Úõ Aª»[PÒ GßÓõÀ GßÚ? Auß ÁøPPøÍ Euõμnzxhß u¸P.

Or

(b) What is Vitamins? Give their deficiency diseases.

øÁmhªßPÒ GßÓõÀ GßÚ? øÁmhªßPÎß SøÓ£õmhõÀ HØ£k® ÷|õ´PøÍ u¸P.

13. (a) Give short note on analgesias. Give examples.

Á»{ÁõμoPøÍ £ØÔ ]Ö SÔ¨¦ ÁøμP. Euõμn[PÒ u¸P.

Or

(b) Write detailed note on anaesthetic.

©¯UP ©¸¢xPÒ £ØÔ Â›ÁõP GÊxP.

A–10162

3

14. (a) Give detailed note on chemoluminescence with examples.

÷ÁvJÎºuø» uUP Euõμn[PÐhß Â›ÁõP ÂÁ›.

Or

(b) Write note on Stark-Einstein’s Law of photo chemicals equivalence.

ìhõºU&IßìiÛß JÎ ÷Áv°¯À \©ß£õk Â›øÁ TÔ SÔ¨¦ ÁøμP.

15. (a) What is buffer solution? How is it prepared?

uõ[PÀ Pøμ\À GßÓõÀ GßÚ? Ax GÆÁõÖ u¯õ›¨£õ´?

Or

(b) Write short note on Oswald’s dilution law.

BìÁõÀiß }ºzuÀ Âvø¯ £ØÔ ]Ö SÔ¨¦ u¸P.

Part C (3 10 = 30)


16. Sketch and draw the structure and biological functions of haemoglobin and chlorophyll.

ï÷©õS÷Íõ¤ß ©ØÖ® S÷Íõ÷μõ¤¼ß £h® Áøμ¢x Auß E°›¯À ö\¯À£õkPøÍ £ØÔ ÂÁ›.

17. (a) Discuss the primary and secondary structure of proteins.

(b) Write the structure of haemoglobin and chlorophyll. (A) ¦÷μõmjßPÎß •uÀ{ø» ©ØÖ® Cμshõ®{ø»

Aø©¨¦PøÍ¨ £ØÔ ÂÁ›.

(B) ï÷©õS÷Íõ¤ß ©ØÖ® S÷Íõ÷μõ¤¼ß Aø©¨ø£ GÊxP.

A–10162

4

18. Explain the following :

(a) Antibiotics

(b) Anti-inflammatory

(c) Antimalarials

(d) Antipyretics

RÌPshÁØøÓ¨ £ØÔ ÂÍUSP.

(A) E°º Gvº öPõÀ¼PÒ

(B) Gvº¨¦ _ÇØ]

(C) Gvº ©÷»›¯õÂØS

(D) _μõÁv›.

19. (a) List out the distinction between the photochemical and thermal reactions.

(b) Discuss the reasons for low and high quantum yield.

(A) JÎ ÷ÁvÂøÚ ©ØÖ® öÁ¨£ ÂøÚPÐUQøh÷¯¯õÚ Âzv¯õ\[PøÍ AmhÁøn¨£kzxP.

(B) SøÓ¢u ©ØÖ® AvP SÁõsh® ÂøÍa\¾UPõÚ Põμn[PøÍ¨ £ØÔÂÍUSP.

20. (a) What is primary and secondary cells? Give distinguish between them.

(b) Write note on calomel electrode.

(A) •uÀ{ø» ©ØÖ® Cμshõ®{ø» ªßP»® GßÓõÀ GßÚ?

(B) P÷»õ©À ªßP»® £ØÔ ]Ö SÔ¨¦ ÁøμP.

————————

A–10327



Chemistry

Allied — GENERAL CHEMISTRY – III



Part A (10 × 1 21 = 15)


1. Define amphoteric oxides.

D›¯À¦ÒÍ BUøékPøÍ Áøμ¯Ö.

2. Give any three uses of ozone.

K÷\õÛß H÷uÝ® ‰ßÖ £¯ßPøÍz u¸P.

3. What is meant by homolytic bond fission?

\© ¤øn¨¦ ¤ÍÄ Gß£uß ö£õ¸Ò GßÚ?

4. What are carbonium ions?

Põº÷£õÛ¯® A¯ÛPÒ GßÓõÀ GßÚ?

5. What are ideal gases?

|À¼¯À¦ Áõ²UPÒ GßÓõÀ GßÚ?

6. Define average velocity of gas molecules.

Áõ² ‰»UTÖPÎß \μõ\› ÷ÁPzøu Áøμ¯Ö.

Sub. Code 4BCHA3

A–10327

2

7. What is meant by mass defect? {øÓ SøÓ£õk Gß£uß ö£õ¸Ò GßÚ?

8. Define half life period. Aøμ ÁõÌUøP Põ»zøu Áøμ¯Ö.

9. What is meant by chromatography? Ásn¨£iÄ¨¤›øP Gß£uß ö£õ¸Ò GßÚ?

10. What do you understand by stationary phase? {ø»¯õÚ {ø»ø© £ØÔ }Âº AÔÁx GßÚ?

Part B (5 × 3 = 15)

Answer all questions, choosing either (a) or (b).

11. (a) How is para-hydrogen converted into ortho-hydrogen?

£õμõ&øímμáøÚ GÆÁõÖ Bºz÷uõ&øímμáÚõP ©õØÖÁõ´?

Or

(b) What are hydrides? How are they classified? øímøμkPÒ GßÓõÀ GßÚ? AøÁPÒ GÆÁõÖ

ÁøP¨£kzu¨£kQßÓÚ?

12. (a) Discuss oxidation reaction. ÷\º¨¦ ÂøÚø¯ ÂÁõv.

Or

(b) Write a note on free radicals. uÛ EÖ¨¦PÒ £ØÔ J¸ SÔ¨¦ GÊxP.

13. (a) Why does a real gas deviate from ideal behaviour? C¯À¦ Áõ², |À¼¯À¦ Áõ²Âß Snzv¼¸¢x Hß

Â»SQÓx?

Or

(b) Narrate the term Viscosity. £õS{ø» GßÓ £uzøu GkzxU TÖP.

A–10327

3

14. (a) Write a note on Stellar energy.

ìöhÀ»õº BØÓÀ £ØÔ J¸ SÔ¨¦ GÊxP.

Or

(b) Write briefly on Nuclear fusion.

AqUP¸UPÒ Tia]øuuÀ £ØÔ _¸UP©õP GÊxP.

15. (a) What is meant by Column Chromatography technique? Name any two absorbents used in this technique.

SÇõ´ Ásn¨£iÁ¨¤›øP Pø»£õ[S Gß£uß ö£õ¸Ò GßÚ? CUPø»¨£õ[QÀ £¯ß£kzu¨£k® H÷uÝ® Cμsk £μ¨¦UPÁº ö£õ¸Îß ö£¯›kP.

Or

(b) What do you understand by the following terms :

(i) Mobile phase

(ii) Eluents.

RÌUPõq® £u[PÒ £ØÔ }Âº AÔÁx GßÚ?

(i) Ch® ö£¯¸® {ø»ø©

(ii) CÊö£õ¸mPÒ.

Part C (3 × 10 = 30)


16. (a) Describe the position of hydrogen in the periodic table.

(b) Explain the preparation and properties of Lithium aluminium hydride.

(A) uÛ© Á›ø\ AmhÁøn°À øímμáÛß Chzøu ÂÁ›UP.

(B) ¼zv¯® AÝªÛ¯® øímøμiß u¯õ›¨¦ ©ØÖ® Sn[PøÍ ÂÍUSP.

A–10327

4

17. (a) Give an account of 2sp hybridisation.

(b) Write notes on Polymerization reactions.

(c) Discuss the shape of p-orbitals.

(A) 2sp &CÚUP»¨¦ BUPÀ £ØÔ J¸ SÔ¨¦ u¸P.

(B) £»£i BUPÀ ÂøÚPÒ £ØÔ SÔ¨¦ GÊxP.

(C) p-&Bº¤hõÀPÎß Aø©¨ø£ ÂÁõv.

18. (a) State Boyle’s law and deduce it from kinetic theory of gases.

(b) Derive the Van der Waals equation for real gases.

(A) £õ°¼ß Âvø¯U TÔ, AuøÚ Áõ²UPÎß C¯UP¨ £s¦U öPõÒøP°À C¸¢x Á¸Â.

(B) C¯À¦ Áõ²UPÐUS Áõshº ÁõÀì \©ß£õmiøÚ Á¸Â.

19. (a) Derive De Broglie’s equation.

(b) Explain any two applications of radioactivity.

(A) i¤μõUÎ°ß \©ß£õmøh Á¸Â.

(B) Pv›¯UPzvß H÷uÝ® Cμsk £¯ß£õkPøÍ ÂÍUSP.

20. (a) Write a note on classification of Chromotography.

(b) Describe the principle of Paper Chromotography technique.

(A) Ásn¨£iÄ¨ ¤›øPø¯ ÁøP¨£kzxuÀ £ØÔ J¸ SÔ¨¦ GÊxP.

(B) uõÒ Ásn¨£iÄ¨¤›øP Pø»¨£õ[Qß uzxÁzøu ÂÁ›.

————————

A–10163



Chemistry

Allied — APPLIED CHEMISTRY – I

(CBCS 2014 onwards)


Part A (10 1 21 = 15)


1. How will you prepare Neoprene rubber?

{÷¯õ¤›ß μ¨£øμ GÆÁõÖ u¯õ›¨£õ´?

2. What are Fibres?

CøÇPÒ GßÓõÀ GßÚ?

3. What are the essential elements in Plant growth?

uõÁμ ÁÍºa]US ÷uøÁ¯õÚ Azv¯õÁ]¯©õÚ uÛ©[PÒ ¯õøÁ?

4. How will you prepare cordite?

Põºøhm ‰»¨ö£õ¸mPøÍ GÊxP.

5. Write the composition of glass.

Psnõi°ß ‰»¨ö£õ¸mPøÍ GÊxP.

6. Define : Fermentation.

ö|õvzuø» Áøμ¯Ö.

Sub. Code 4BCHA4

A–10163

2

7. What is Electroplating?

ªß•»õ® §_uÀ GßÓõÀ GßÚ?

8. What are detergents?

ihºöáskPÒ GßÓõÀ GßÚ?

9. Write the types of Pollution.

©õ_£õmiß ÁøPPøÍ GÊxP.

10. Define : Bleaching.

{Ó®}UQø¯ Áøμ¯Ö.

Part B (5 3 = 15)


11. (a) Write the distinction between resins and plastics.

öμ]ßPÒ ©ØÖ® ¤ÍõìiU BQ¯ÁØÖUQøh÷¯¯õÚ

÷ÁÖ£õkPøÍ GÊxP.

Or

(b) Describe a note on urea formaldehyde resin.

³›¯õ £õº©õÀiøPk öμ]ß £ØÔ SÔ¨¦ ÁøμP.

12. (a) Discuss about natural and chemical fertilizer.

C¯ØøP ©ØÖ® ÷Áv Eμ[PÒ £ØÔ ÂÁ›.

Or

(b) Write note on Nitroglycerine.

ø|m÷μõ QÎ\›ß £ØÔ SÔ¨¦ ÁøμP.

13. (a) Briefly explain the manufacture of Vinegar.

ÂÛPº u¯õ›zuø» Â›ÁõP ÂÁ›.

Or

(b) Discuss the manufacture of ceramics.

ö\μõªUì u¯õ›zuø» Â£›.

A–10163

3

14. (a) Write about the various methods of preventing corrosion.

A›©õÚzøu ukUS® ö\¯À•øÓPøÍ GÊxP.

Or

(b) Write a note on Cationic detergents.

÷|ºªßA¯Û ihºöáßkPÒ £ØÔ SÔ¨¦ ÁøμP.

15. (a) Discuss the Air quality standards.

PõØÔß vmh©v¨¤kPÒ £ØÔ ÂÁ›.

Or

(b) Write note on Water pollution.

}º ©õ_¨£kuÀ £ØÔ SÔ¨¦ ÁøμP.

Part C (3 10 = 30)


16. Write a note on the following :

(a) Teflon

(b) Nylon 6,6

(c) Bakelite

(d) Dacron.

¤ßÁ¸ÁÚÁØøÓ £ØÔ SÔ¨¦ ÁøμP .

(A) öh¨»õß

(B) ø|»õß 6,6

(C) ÷£UPø»m

(D) öhUμõß.

A–10163

4

17. Discuss the raw materials and manufacturing process of match industry.

w¨ö£mi u¯õ›UP ÷uøÁ¨£k® ‰»¨ö£õ¸mPÒ ©ØÖ® Auß u¯õ›zuø» ÂÁ›.

18. Explain the raw materials and manufacturing process of cement.

]ö©ßiß ‰»¨ö£õ¸mPÒ ©ØÖ® ]ö©sm u¯õ›US® ö\¯À•øÓ°øÚ ÂÍUSP.

19. Discuss the manufacturing process of soap.

÷\õ¨¦ u¯õ›US® ö\¯À•øÓPøÍ ÂÁ›.

20. Give a brief account of Air pollution.

PõØÖ ©õ_£kuÀ SÔzx Â›ÁõP ÂÍUSP.

————————

A–10033 Sub. Code 4BCH1C1

Documents

Transcript of A–10033 Sub. Code 4BCH1C1