� iz'uksa ds mÙkj ds fy, ns[ksa Read and Pass Sure Success Guess Paper–2022BhaRtiya Bhawan

B-1 y?kq mÙkjh; iz'u

1. Bksl voLFkk1. 'kkWVdh rFkk Úsadsy =kqfV;ksa esa vUrj fyf[k,A WhatisthedifferencebetweenSchottkyandFrenkeldefect?2. CsCl dh lajpuk dk lf{kIr o.kZu djsaA DiscussbrieflythestructureofCsCl.3. Úsady nks"k ls vki D;k le>rs gSa \ WhatdoyoumeanbyFrenkel'sDefect?4. fØLVy fcUnq =kqfV ls vki D;k le>rs gSa \ Whatdoyoumeanbypointdefectinacrystal?

2. ruq ?kksy1. phuh ds ?kksy dk ijklj.k nkc 27°C ij 2.46 atm gSA bl ?kksy dk lkUæ.k Kkr

dhft,A Theosmoticpressureofsugarsolution is2.46atmat270C.Calculate the

concentrationofthesolution. 2. foijhr ijklj.k fdls dgrs gSa \ bldk ,d vuqiz;ksx fyf[k,A Whatisreverseosmosis?Giveitsoneapplication.3. ,d ik=k esa �8 g Xywdkst (C6H�2O6) dks �.0�3 ckj ok;qe.Myh; nkc ij � kg ty

esa ?kksyk x;kA ty fdl rki ij mcysxk \ (Kb = 0.52 K kg mol–�) 18gofglucose(C6H12O6)wasaddedto1kgofwaterat1.013baratmospheric

pressureinavessel.Atwhichtemperaturewillwaterboil? Kb forH2Ois0.52Kkgmol–1.

4. 5% ;wfj;k ds ?kksy dk ijklj.k nkc 273 K ij Kkr dhft,A Calculatetheosmoticpressureof5%ureasolutionat273K.5. (a) ok"inkc ds lkis{k voueu ls vki D;k le>rs gSa \ Whatdoyoumeanbyrelativeloweringofvapourpressure? (b) ,sfuyhu ds bZFkj esa �% ?kksy dk lkis{k voueu 0.007 ik;k x;kA ,sfuyhu dk

v.kqHkkj Kkr dhft,A Therelativeloweringofvapourpressureof1%solutionofAnilineinEther

was0.007.CalculatethemolecularweightofAniline.6. vkn'kZ foy;u ls vki D;k le>rs gSa \ WhatdoyoumeanbyanIdealsolution?7. ijklj.k nkc dks ifjHkkf"kr djsa \ DefineOsmoticpressure?

BSEB VVI SuBjEctIVE GuESS QuEStIon 2022

50 MarksSection–B fo"k;fu"B ç'u

Chemistry Class 12jlk;u'kkL=k

2 iz'uksa ds mÙkj ds fy, ns[ksa Read and Pass Sure Success Guess Paper–2022BhaRtiya Bhawan

8. vkn'kZ vkSj vukn'kZ ?kksy D;k gS \ Whatareidealandnon-idealsolutions?9. ijklj.kh nkc dks ifjHkkf"kr djsas A DefineOsmoticpressure.10. eksyyrk ,oa eksyjrk dh ifjHkk"kk nsaA Definemolalityandmolefraction.11. D;ksa fdlh rjy esa mM+yu'khy Bksl ?kqY; Mkyus ij mlds ok"i nkc esa deh vkrh

gS \ Whydoesvapourpressureofaliquiddecreasewithadditionofanon-volatile

solidsolute?12. lEidZ fof/ vkSj vkWLVokYd fof/ esa ç;qDr mRçsjd dk uke nsaA WritethenameofthecatalystusedinContactprocessandOstwaldmethod.

3. fo|qr jlk;u1. uhps fn[kk, x, lsy ds fy, % Zn(s)/ZnSO4(aq)/CuSO4(aq)/Cu(s) ekud lsy foHko dh x.kuk dhft, ;fn ekud vodkjd bysDVªksM foHko Cu2+/Cu

rFkk Zn2+/Zn ds fy, Øe'k% +0.34V rFkk –0.76 V fn;k gqvk gSA Forthecellshownbelow:Zn(s)|ZnSO4(aq)||CuSO4(aq)|Cu(s) Calculatestandardcellpotentialifstandardstatereductionelectrodepotential

forCu2+|CuandZn2+|Znare+0.34Vand–076Vrespectively.2. lkYV fczt D;k gS\ blds mi;ksx dks fy[ksaA Whatissaltbridge?Whatareitsuses?3. fo|qr~ foPNsnu dk mi;ksx fdlesa fd;k tkrk gS \ Whatiselectrodepotential.Writethetypeofelectrodepotential?4. fo|qr~&jklk;fud rqY;kad dh ifjHkk"kk nhft,A Defineelectrochemicalequivalent.5. CuSO4 ?kksy ls 24�25 dwykWe fo|qr~ izokfgr djus ij fdruk Cu eksy feysxk \ HowmanymolesofCuwillbedepositedbypassing24125coulombofelectric

currentfromCuSO4solution?6. bysDVªksM foHko D;k gS \ Explainstandardelectrodepotential?7. dkWij lYisQV dks ftad ik=k esa D;ksa ugha tek fd;k tkrk gS \ WhyCoppersulphateisnotstoredinzincpot?

8. usuZLV lehdj.k E = E0 – RTpF ln

[M][Mn+] , esa R vkSj F D;k gS \

InNernstequationE=E0 – RTpF ln

[M][Mn+], R and F standsfor?

9. lsy fLFkjkad dks ifjHkkf"kr djsaA DefineCellconstant?10. bysDVªksM vkSj bysDVªksM foHko dks ifjHkkf"kr djsa A Defineelectrodeandelectrodepotential.11. fof'k"V ,oa lerqY;kad pkydrk dks ifjHkkf"kr djsa A Definespecificconductance&equivalentconductance.12. fuEu çfrfØ;kvksa ds fy, fo|qrh; lsy cuk,¡ Constructelectriccellsforthefollowingreactions :

3 iz'uksa ds mÙkj ds fy, ns[ksa Read and Pass Sure Success Guess Paper–2022BhaRtiya Bhawan

(i) Fe + Cu2+ → Cu + Fe2+

(ii) 2 Fe3+ + 2 Cl– → 2 Fe2+ + Cl213. iSQjkMs ds fo|qr vi?kVu ds çFke fu;e dks fy[ksa A WritefirstlawofFaraday'slawofelectrolysis.14. pk¡nh fo|qr dk vPNk lqpkyd gS] D;ksa \ SilverisaGoodconductorofelectricity.Why?15. ,Y;wfeuk ds fo|qr vi?kVu vodj.k esa Øk;ksykbV ds mi;ksx ds D;k ykHk gSa \ What are the advantages of usingCryolite in the electrolytic reduction of

alumina?16. DoFkukad ds mUu;u ls vki D;k le>rs gSa \17. iQSjkMs ds fo|qr vi?kVu dk çFke fu;e fyf[k, A

4. jklk;fud cy xfrdh1. fn[kkb, dh izFke dksfV vfHkfØ;k dk v/Zthou dky vius vkjfEHkd lkUæ.k ij

fuHkZj ugha gSA Deriveanexpressionforthehalf-lifeperiodincaseoffirstorderreactionand

showthatitisindependentofinitialconcentration?2. vfHkfØ;k ds dksfV dh O;k[;k djsa A Explainorderofreaction.3. FkzslgksYM mQtkZ dks ifjHkkf"kr dhft,A DefineThresholdenergy.4. ,d izFke dksfV vfHkfØ;k 60 feuV esa 75% iw.kZ gksrh gSA bl vfHkfØ;k dh v¼Z&vk;q

Kkr dhft,A Afirstorderreactionis75%completedin60min.Findthehalf-lifeperiodof

thereaction.5. ;fn fdlh jklk;fud vfHkfØ;k A + B → izfriQy ds vfHkfØ;k dh nj R = k[A]�/2

[B]3/2 gS] rks vfHkfØ;k dh dksfV D;k gksxh \ IfinachemicalreactionA+B→ProductratelowisgivenbyR=K[A]1/2

[B]3/2,findtheorderofreaction.6. çkFkfed lSy ls vki D;k le>rs gSa \ WhatdoyoumeanbyPrimarycell?7. çFke dksfV dh çfrfØ;k dk vèkZ vk;qdky �0 feuV gS A çfrfØ;k dh nj

fudkysa A Halflifeperiodoffirstorderreactionis10minutes.Calculatetherateconstant

ofthereaction.8. veksfu;k xSl dh Øe'k% tyh; CuSO4 vkSj AgNO3 ?kksy ds lkFk çfrfØ;k

fy[ksa A Write the chemical reaction of NH3 gaswith aqueousCuSO4 andAgNO3

solutionsrespectively.9. vfHkfØ;k ds osx ij rki dk D;k çHkko iM+rk gS \ Whatistheeffectoftemperatureontherateofreaction?

5. i`"B jlk;u1. vo'kks"k.k rFkk vf/'kks"k.k esa D;k vUrj gksrk gS \ Differentiatebetweenadsorptionandabsorption.

4 iz'uksa ds mÙkj ds fy, ns[ksa Read and Pass Sure Success Guess Paper–2022BhaRtiya Bhawan

2. ,Utkbe D;k gS \ WhatareEnzymes?3. æo&fojks/h rFkk æo&Lusgh lkWy D;k gksrs gSa \ buds izeq[k foHksnh y{k.k fyf[k,A What are lyophobic and lyophilic sols ? Give their chief distinguishing

characteristics.4. ,sYdksgkWy ds tyh; foy;u fo|qr dk dqpkyd D;ksa gksrk gS \ Whyaqueoussolutionofalcoholdoesnotconductelectricity?

6. rÙoksa ds fu"d"kZ.k ds lkekU; fl¼kar ,oa izfØ;k

1. fuEufyf[kr /krqvksa dks ifj"Ñr djus ds fy, dkSu&dkSu lh fof/;k¡ lk/kj.k :i ls dke esa ykbZ tkrh gSa \

Whichmethodsareusuallyemployedforpurifyingthefollowingmetals? (i) fufdy (Nickel) (ii) vk;ju (Iron) fl¼kUrksa dks fyf[k, (Mentiontheprinciples).2. dkWij ds eq[; v;Ldksa ds uke crkb,A Givenamesandformulaeoftwomainoresofcopper.3. v;Ld esa mifLFkr v'kqf¼;ksa dks D;k dgrs gSa \ Whatistheimpuritypresentinorecalled?4. fuEufyf[kr esa mnkgj.k lfgr vUrj Li"V dhft,A Differentiatethefollowinggivingasuitableexample: (i) fuLrkiu rFkk HktZu (Calcinationandroasting) (ii) xkyd rFkk /krqey (Fluxandslag)5. ,syqfefu;e ,oa rk¡cksa ds eq[; v;Ld ,oa mudh jklk;fud lajpuk crkb,A GivethenameandchemicalcompositionofimportantoresofAluminiumand

Copper?6. fdlh Bksl ij xSl ds vo'kksf"kr gksus ij Å"ekxfrdh; ifjorZuksa dk o.kZu djsa A Describethermodynamicalchangeswhenagasisadsorbedonasolid?7. D;k gksrk gS] tc PCl5 dks xeZ djrs gSa \ vfHkfØ;k nsa A WhathgappeneswhenPCl5isheated?Givereaction.8. O3 ,d çcy vkWDlhdkjd ds rjg D;ksa fØ;k djrh gS \ le>kb,A WhyO3actsasastrongoxidisingagent?Explain.9. veksfu;k dh rqyuk esa iQksfLiQu dk DoFkukad de gS A D;ksa \ Phosphenehaslowerboilingpointthanammonia.Why?10. ukbVªkstu ds v.kq de fØ;k'khy D;ksa gksrs gSa \ Whyisthenitrogenmoleculelessreactive?

7. p–cykWd ds rÙo1. HF, HCl dh rqyuk esa nqcZy vEy D;ksa gksrk gS \ WhyisHFweakeracidthanHCl?2. gSykstu izcy vkWDlhdkjd D;ksa gksrs gSa \ Halogensarestrongoxidisingagents.Why?3. fuEu ij fVIi.kh fdft, (Explainwhy): (i) NH3 dk DoFkukad PH3 ls mPp gksrk gSA BoilingpointofNH3ishigherthanPH3.

5 iz'uksa ds mÙkj ds fy, ns[ksa Read and Pass Sure Success Guess Paper–2022BhaRtiya Bhawan

(ii) H3PO3 MkbizksfVd vEy gSA H3PO3isadi-proticacid.4. vksfy;e dk lw=k D;k gS \ Whatistheformulaofoleum?5. (a) veksfu;k ls ukbfVªd vEy mRiknu ds fl¼kUr dk mYys[k dhft,A Givetheprincipleofthemanufactureofnitricacidfromammonia? (b) rkez /krq ds lkFk 5% ruq HNO3 dh vfHkfØ;k fyf[k,A Givethereactionof50%diluteHNO3withcoppermetal.6. H3PO3 esa iQkWLiQksjl dh vkWDlhdj.k la[;k D;k gS\ WhatistheoxidationnumberofphosphorusinH3PO3?7. D;k gksrk gS tc (Explainwhathappenswhen)– (a) lksfM;e ,slhVV dks lksMk&ykbe ds lkFk xeZ djrs gSa \ Sodiumacetateisheatedwithsodalime? (b) dSfYl;e dkckZbM dh ty ls vfHkfØ;k djrs gSa \ Calciumcarbideisallowedtoreactwithwater?8. Cl, Br, I ;k gSykstu vkorZ lkj.kh ds fdl oxZ ds lnL; gSa \ Cl,Br,Iorhalogenaremembersofwhichgroupofperiodictable?9. vfØ; xSlksa dh la;kstdrk 'kwU; D;ksa gksrh gS\ le>kb,A Explain,whythevalencyofinertgasesisZero?10. PH3 ls PH4

+ dk vkcU/ dks.k dk eku T;knk gksrk gS] D;ksa \ WhyisthebondangleofPH4

+morethanPH3?O

P HO

OHOH

11. veksfu;k ls ukbfVªd vEy dSls cuk;k tkrk gS \ Showthathownitricacidispreparedfromammonia?12. H2O mnklhu gS] tcfd H2S vEyh;A crkb,] D;ksa \ ExpalinwhyH2OisneutralwhereasH2Sisacidic?13. fuEufyf[kr ;kSfxdksa esa ls fdlds jklk;fud vkcU/ esa de vk;fud vfHky{k.k

gksxk \ LiCl vFkok KCl Explaininwhichofthefollowingcompoundsthechemicalbondwouldhave

lessioniccharacterLiClorKCl.14. fuEufyf[kr ds fy, dkj.k nsrs gq, Li"V dhft,A HF ls HI rd vEyh; O;ogkj c<+rk gSA Justify/Expainwhy: TheacidicbehaviourincreasesfromHFtoHI15. vfØ; xSlksa esa dsoy Xe gh jklk;fud ;kSfxd cukrk gSA OnlyXeformschemicalcompoundamonginertgases,why?16. vk;ksMhu ds eq[; Ïksr D;k gSa \ leqæh ?kkl&ikr ls izkIr vk;ksMhu dks fyf[k,A What are themain sources of iodine?How is iodine extracted from sea

weeds?

6 iz'uksa ds mÙkj ds fy, ns[ksa Read and Pass Sure Success Guess Paper–2022BhaRtiya Bhawan

17. dkcZu rFkk flfydkWu dh la;kstdrk pkj gksrh gS tcfd Ge, Sn rFkk Pb dh la;kstdrk nks Hkh gksrh gSA

CarbonandsiliconaretetravalentbutGe,SnandPbshowdivalencyalso.18. dejs ds rkieku ij H2O rjy gS] tcfd H2S xSl gS] D;ksa \ WhyH2OisliquidandH2Sisgasatroomtemperature?19. D;k gksrk gS tcfd (Whathappenswhen)% (i) lkUnz xa/dkEy dks dSfYl;e ÝyksjkbM ls feyk;k tkrk gS vkSj xeZ fd;k tkrk gS \ ConcentratedH2SO4isaddedtoCalciumfluorideandheated? (ii) SO3 dks ty esa izokfgr fd;k tkrk gS \ SO3ispassedthroughwater.20. PH3 vknzZ ok;q ds lkFk /qez cukrk gS] D;ksa \ WhydoesPH3fumesinmoistair?21. ukbVªkstu fliZQ NCl3 dk fuekZ.k djrk gS tcfd iQkWLiQksjl PCl3 vkSj PCl5 nksuksa

cukrk gS A O;k[;k djsa A Nitrogen forms only NCl3 but phosphorous forms PCl3 and PCl5 both.

Explain.22. ukbVªkstu dh bysDVªkWu cUèkqrk dkcZu ls de gksrh gS A D;ksa \ ElectronaffinityofnitrogenislessthanCarbon.Why?23. lkUæ HNO3 dks ,Y;qfefu;e ik=k esa laxzg djrs gSa] D;ksa \ Conc.HNO3isstoredinAluminiumvessel,why?24. SiF6

2– Kkr gS ijUrq SiClF62– ugha] D;ksa \

SiF2–6isknownbutSiCl

2–6isnotknown.Why?

8. d,oa fcykWd rÙo1. 3d-laØ.k Js.kh rRoksa es iSjkpqEcdh; y{k.k Mn rd c<+rs gSa] fiQj ?kVrs gSaA Explainwhy the paramagnetic character in 3d transition series elements

increasesuptoMnandthendecreases.2. fdlh laØe.k Js.kh esa dsoy nl rRo gksrs gSa] D;ksa\ Anytransitionseriescontainsonlytenelements,why?3. [Ni(CO4)] esa fufdy dh vkWDlhdj.k la[;k D;k gS \ Whatistheoxidationnumberofnickelin[Ni(CO)4]?4. dkSu ls rF; dks vk/kj cuk dj vki dgsaxs fd] LdSfUM;e (Z = 2�) ,d laØe.k

rRo gS \ Onwhatgroundyouwillsaythat,scandium(Z =21)isatransitionmetal?5. Cr2+ rFkk Fe2+ esa ls dkSu izcy vodkjd gSa] O;k[;k djsaA WhichoreisstrongerreducingagentCr2+orFe2+?Explain.6. flfydkWu fliZQ +4 vkWDlhdj.k voLFkk fn[kykrk gS tcfd Vhu +2 vkSj +4 nksuksa

fn[kykrk gS A D;ksa \ Siliconshowsonly+4oxidationstatebutinshowsboth+2and+4oxidation

statesboth.Why?7. lYiQj SF6 cukrk gS] ij SCl6 ugha] D;ksa \ SulphurformsSF6butnotSCl6,why?8. VsVªk,ehuks ,sDok DyksfjMks dksckYV (III) DyksjkbM dk lw=k fy[ksaA GivetheformulaofTetra-aminoaquachloridecobalt(III)chloride.

7 iz'uksa ds mÙkj ds fy, ns[ksa Read and Pass Sure Success Guess Paper–2022BhaRtiya Bhawan

9. K3 [Cr (C2O4)3] ladqy dk I.U.P.A.C. uke fy[ksa A WriteI.U.P.A.C.nameofthecompoundK3[Cr(C2O4)3]10. fuEufyf[kr ;kSfxd dk I.U.P.A.C. uke fy[ksa % WritetheIUPACnameofthefollowingcompounds.

CH3 — CH2 — N — CH3

CH3

9. milgla;kstu ;kSfxd1. fuEufyf[kr ladqy ;kSfxdksa ds IUPAC uke fyf[k,A WritetheIUPACnamesofthefollowingcoordinatecompounds: (a) [Pt(NH3)2Cl2]Cl2 (b) [Cr(NH3)4Cl2]

+

2. fuEufyf[kr mi lg la;kstd ;kSfxdksa dk uke fyf[k,A WritetheIUPACnameofthefollowingCo-ordinationCompounds: (i) K4[Fe(CN)6] (ii) Ni(CO)4 (iii) K2[Pt (Cl)6] (iv) Co(NH3)3 (v) Fe[Fe(CN)6]3. leUo;h la[;k ls vki D;k le>rs gSa \ Whatdoyoumeanbyco-ordinationnumber?4. f}nUrqj fyxS.M ls vki D;k le>rs gSa \ DefineBidentateligand?5. tfVy (ladqy) [Cu(NH3)4]

2+ esa Cu dh vkWDlhdj.k la[;k dh x.kuk djsa A FindtheoxidationnumberofCuinthcomplexion:[Cu(NH3)4]

2+.

10. gSyks,YdsUl rFkk gSyks,jhUl

1. fuEufyf[kr ds IUPAC uke fy[ksaA WritetheIUPACnamesoffollowing:

(i)CH3 H

HBrCH3H

(ii)CH3

HBrCH3H

CH3

(iii) BrCH2CH = CHCH2Br2. crkb, D;k gksrk gS tc % ehFksu lw;Z ds vizR;{k izdk'k esa Dyksjhu ls vfHkfØ;k

djrk gS \ Whathappenswhen:Methanereactswithchlorineindiffusedsunlight?3. CH4 esa dkcZu dk ladj.k D;k gS \ WhatisthehybridizationofcarboninCH4? 4. oqV~Zt izfrfØ;k fy[ksa % WriteWurtzreaction.5. C6H6

Cl2FeCl3.D

[A] CH3 – Cl

AlCl3 [B]

[A] vkSj [B] dk uke vkSj lajpuk fy[ksa A Writethenameandstructureof[A]and[B].

8 iz'uksa ds mÙkj ds fy, ns[ksa Read and Pass Sure Success Guess Paper–2022BhaRtiya Bhawan

6. osathu ds ukbVªs'ku dh fofèk dk o.kZu djsa A Describemethodofnitrationofbenzene.7. ,atkbe D;k gSsa \ WhatareEnzymes?

11. vYdksgy] bZFkj ,oa fiQukWy1. CH3OH rFkk C2H5OH ds chp fdUgha nks vUrjksa dks fyf[k,A WriteanytwodifferencesbetweenCH3OHandC2H5OH.2. fuEufyf[kr ds lajpuk lw=k fyf[k, (Write the structural formulae of the

following) (a) 4, 4 MkbfeFkkby 2-isUVsukWy (4,4-dimethyl-2-pentanol)\ (b) 2-C;wVsukWy (2-butanol).3. p-ukbVªksfiQukWy] P-feFkkbZy fiQukWy ls vfèkd vEyh; gksrk gS A D;ksa \ P-NitrophenolismoreacidicthanP-methylphenol.Why?4. cjkcj vkf.od Hkkj okys gkbMªksdkcZu dh vis{kk ,sYdksgkWy ty esa vf/d foys;

gksrk gS] D;ksa \ Explainwhyalcoholshavingsamemolecularweightaremoresolublethan

correspondinghydrocarbons.5. ,sYdksgkWy ,oa iQhukWy esa vUrj Li"V djsa A DistinguishbetweenAlcoholandPhenol.6. D;k gksrk gS] tc n-C;wfVy DyksjkbM dks ,sYdksgkWfyd KOH ds lkFk vfHkfØ;k

djrk gS \ Whathappenswhen n-butylchloridereactswithalcoholicKOH?7. MkbZ,fFky bZFkj lksfM;e ls vfHkfØ;k ugha djrk gS A D;ksa \ Whydoesdiethyletharnotreactwithsodium?

12. ,fYMgkbM] dhVksu vkSj dkcksZfDlfyd vEy1. Dyksjks ,slhVhd vEy ,slhfVd vEy ls izcy gSA Chloroaceticacidisstrongerthanaceticacid.2. fuEufyf[kr ds IUPAC uke crkb,– GivetheI.U.P.A.C.namesofthefollowing:

(a) CH2 — COOH

CH2 — COOH

(b)

OH

CH3 — CH — COOH

(c)

CH3

CH3 — CH — CH3 — O — CH2 — CH3

3. fuEufyf[kr ;kSfxd dk IUPAC uke fyf[k,A WritetheIUPACnameofthefollowingcompounds.

C�H3 — C2H — C3H — C4H3

CH3CH3

� iz'uksa ds mÙkj ds fy, ns[ksa Read and Pass Sure Success Guess Paper–2022BhaRtiya Bhawan

4. D;k gksrk gS tc ,flVyfMgkbM dks Cyhfpax ikmMj ds lkFk xeZ fd;k tkrk gS] Whathappenswhenacetaldehydeisheatedwithbleachingpowder?5. iQkesZfyu ds nks eq[; mi;ksxksa dk o.kZu dhft,A Explaintwoimportantusessofformalin.6. ,sfYMgkbM ds vkWDlhdj.k ls D;k feyrk gS \ Aldehydeonoxidationwillgive?7. fçQMy&ØkÝy dh ,Ydkbys'ku vkSj ,lk;ys'ku çfrfØ;kvksa dks fy[ksaA WriteFriedel-Craftsalkylationandacylationreaction.8. dkbjy rFkk vdkbjy ;kSfxd D;k gksrh gS \ Whatdoyouunderstandbychiralandachiralcompounds?9. fuEufyf[kr ;kSfxd dk I.U.P.A.C. uke fy[ksa % WritetheIUPACnameofthefollowingcompounds.

CH3 — CH — C — NH2

OBr

13. ,ehu1. fuEufyf[kr dk ifjorZu dSls djsaxs (Howwillyouconvertthefollowing)\ (i) ,fFky ,sehu ls ,sfFky ,sYdksgkWy(Ethylaminetoethylalcohol) (ii) ,fFky ,sYdksgkWy ls ,fFky ,sehu(Ethylalcoholtoethylamine).2. vehuks vEy D;k gS \ Whatareaminoacids?3. ,Ydkby vehu veksfu;k ls çcy {kkj gS] D;ksa \ AlkylamineisstrongerbasethanAmmonia,Why?4. veksfu;k ,d vPNk fyxs.M gS] D;ksa \ Whyisammoniaagoodligand?5. vki vko';d ,ehuks vEy ls D;k le>rs gSa \ Whatdoyoumeanbyessentialaminoacids?

B-2 nh?kZ mÙkjh; iz'u

1. Bksl voLFkk1. (i) ;fn NaCl dks �0–3 mol % SrCl2 esa Mksfir fd;k tk; rks /uk;u fjfDr;ksa dk

lkUnz.k D;k gksxk\ IfNaClisdopedwith10–3mol%SrCl2thenwhatistheconcentrationof

cationsvacancies? (ii) vfØLVyh; Bkslksa dk mi;ksx fyf[k,A Writetheusesofamorphoussolids.

2. ruq ?kksy1. ok"i nkc voueu ls vki D;k le>rs gSa \ ok"i nkc ds vkisf{kd voueu dk

lehdj.k nhft,A vFkok] jkWmYV ds ok"i nkc ds lkis{k vou;u fu;e dh O;k[;k dhft,A StateandderiveRaoult'slawforasolutioncontaining(i)non-volatilesolutes,

(ii)volatilesolutes.

�0 iz'uksa ds mÙkj ds fy, ns[ksa Read and Pass Sure Success Guess Paper–2022BhaRtiya Bhawan

2. tc �0 g xzke ek=kk dk ,d vok"i'khy ?kqY; dks �00 g csUthu esa ?kqyk;k tkrk gS] rc blds DoFkukad esa �° dh c<+ksÙkjh gks tkrh gSA blds ?kqY; ds v.kq ek=kk dh x.kuk dhft,A

[Kb for benzene = 2.53 km–�] When10gofNon-volatilesoluteisdissolvedin100gofbenzeneitsboiling

pointraisedby1°.Whatisthemolecularmassofthesolute? [Kbforbenzene=2.53km

–1]3. (a) fgekad ds voueu ls vki D;k le>rs gSa \ Whatdoyoumeanbytheterm'Depressionoffreezingpoint'? (b) fgekad ds voueu lEcU/h jkWmYV dk fu;e fy[ksaA bl fu;e ls fdlh Hkh

vok"i'khy ,oa ukWu&bysDVªksykbV foys; dk v.kq&Hkkj dSls Kkr djsaxs \ StateRaoult'sLawofdepressionoffreezingpoint?Howisitusefulin

determiningthemolecularweightofnon-volatileandnon-electrolyte.4. fuEufyf[kr inksa dks ifjHkkf"kr dhft, Explainthefollowingtermswithsuitableexample: (i) eksy izHkkt (Mole fraction), (ii) eksyyrk (Molality) (iii) eksyjrk (Molarity) (iv) æO;eku izfr'kr (Mass percentage) (v) ukWeZyrk (Normality) 5. vkn'kZ vkSj vukn'kZ ?kksy D;k gS \ Whatareidealandnon-idealsolutions?

3. fo|qr jlk;u1. ekud gkbMªkstu bysDVªksM dk o.kZu dhft,A Whatisstandardhydrogenelectrode?2. fof'k"V pkydrk ,oa eksyj pkydrk D;k gS \ WhatisspecificandmolarConductance?3. ,d pkydRo lsy] ftlesa 7.5 × �0–3 M KCl dk foy;u 25°C ij Fkk dk ekfir

vojks/ �005 vkse gSA x.kuk dhft,A Themeasuredresistanceofaconductivitycellcontaining7.5×10–3MKCl

solutionat25°Cis1005ohm.Calculate. lsy fLFkjkad (i) fof'k"V pkydrk (ii) foy;u dh eksyj pkydrk Cellconstant=1.25cm–1

(i)Specificconductivity (ii) Molarconductivityofcell.4. izkFkfed rFkk f}rh;d cSVfj;k¡ D;k gSa \ Whatisprimarycellandsecondarycells?5. nks vip;u bysDVªksM izfØ;kvksa ds fy, E0 eku fuEuor~ gSa TheE0valuesoffollowingtworeductionelectrodesare: (i) Cu+/Cu = +0.52 V (ii) Cu2+/Cu+ = +0.�6V buds }kjk xSYosuh lsy dk fuekZ.k dhft,A lsy vfHkfØ;k ds fy, DrG

0 dk eku Kkr dhft,A

Formulatethegalvaniccellbythesecombination.CalculateDrG0forthecell

reaction.

�� iz'uksa ds mÙkj ds fy, ns[ksa Read and Pass Sure Success Guess Paper–2022BhaRtiya Bhawan

6. dkWij ds eq[; v;Ld D;k gS \ dkWj ik;jkbV~l ls dkWij dk fu"d"kZ.k dSls fd;k tkrk gS \

Whataretheimportantoresofcopper?Howiscopperextractedfromcopperpyrites?

7. ,Y;qfeuk ds fo|qr vi?kVu esa Øk;ksykbV D;ksa Mkyk tkrk gS \8. (a) ¯td CysUM v;Ld ls tLrk /krq ds fu"d"kZ.k ds fl¼kUr dk o.kZu djsa A (b) ,Y;qfefu;e lkUæ H2SO4 ls dSls vfHkfØ;k djrk gS \ (a)DiscusstheprincipleofextractionofZnmetalfromZincblendeore. (b)Howdoesitreactwithconc.sulphuricacid?

4. jklk;fud cy xfrdh1. vfHkfØ;k dh dksfV rFkk vkf.odrk esa vUrj Li"V dhft,A Whatisthedifferencebetweenorderofareactionanditsmolecularity?2. fuEu O;atd ds fy, izfrfØ;k dh dksfV dh x.kuk djsaA Findtheorderofreactionofthefollowing: (A) Rate = K[A]½ [B]3/2 (B) Rate = K[A]3/2 [B]–�

3. çfrfØ;k ds çFke dksfV ds xfrdh dk o.kZu djsa A D;ksa çfrfØ;k dh çFke dksfV dHkh iw.kZ ugha gksrh gS \

Describe thekineticsofafirstorderreaction.Whyisafirstorderreactionnevercompleted?

4. vfHkfØ;k dh dksfV dks ifjHkkf"kr djsa A vki dSls tkusaxs dh vfHkfØ;k çFke dksfV dh gS \

Defineorderofreaction.Howwillyouknowthatareactionisoffirstorder?

5. i`"B jlk;u1. vf/'kks"k.k lerkih oØ fdls dgrs gSa \ Úq.Mfyd vfèk'kks"k.k lerkih oØ dk o.kZu

dhft,A Whatisadsorptionisotherm?DescribetheFreundlichadsorptionisotherm.2. fuEufyf[kr inksa dks le>kb, (Explainthefollowingterms): (i) LdUnu (Coagulation) (ii) oS|qr&d.k lapyu (Electrophoresis) (iii) fV.My izHkko (TyndallEffect) (iv) gkMhZ&'kqYt dk fu;e (Hardy-Shulze'srule)

6. rÙoksa ds fu"d"kZ.k ds lkekU; fl¼kar ,oa izfØ;k1. ckWDlkbV ls ,Y;qehfu;e fu"d"kZ.k dh fofèk dks laf{kIr esa fy[ksa A Describetheprincipleofextractionofaluminiummetal.2. ftad rFkk ejdjh ds izeq[k v;Ldksa ds uke fyf[k,A lEcfUèkr v;Ld ls /krq izkIr

djus esa gksus okyh jklk;fud vfHkfØ;k,¡ fyf[k,A Listtheimportantstepsfortheextractionsofzincfromzincblende.3. vk;ksMhu ds eq[; lzksr D;k gSa \ bls leqæh ?kkl ls dSls çkIr fd;k tkrk gS \ WhatismainsourceofIodine.Howitisobtainfromseegrass?

�2 iz'uksa ds mÙkj ds fy, ns[ksa Read and Pass Sure Success Guess Paper–2022BhaRtiya Bhawan

4. yksgs ds nks eq[; v;Ldksa ds uke nhft,A v;Ld ls yksgk cukus dh fof/ dk o.kZu dhft,A jklk;fud lehdj.k nhft,A

Nametwoimportantoresof iron.Howis ironextractedfromitsore?Givechemicalequations.

7. d,oa f cykWd rÙo1. dqN laØe.k rRo mRizsjd ds :i esa dSls dk;Z djrs gSa \ nks vfHkfØ;kvksa ds mnkgj.k

nhft, tks buls mRizsfjr gksrh gSaA Howisitthatseveraltransitionmetalactascatalysts?Givetwoexamplesof

reactioncatalysedbythem?2. budk bysDVªkWfud foU;kl fy[ksa (Writedowntheelectronicconfigurationof)% (a) Cr3+ (b) Cu+ (c) Co2+ (d) Mn2+ (e) Pm3+

(f) Ce4+ (g) Lu2+ (h) Th4+ (i) Fe2+

8. milgla;kstu ;kSfxd1. ouZj ds mi lgla;kstd fl¼kUr fyf[k,A StateWerner'sCo-ordinationtheory?2. fyxUM D;k gSa\ mnkgj.k ds lkFk mudk oxhZdj.k djsaA Whatareligands?Classifythemwithexamples?

9. gSyks,YdsUl rFkk gSyks,jhUl1. D;k gksrk gS tc \ (Whathappenswhen?) (i) ,slhVSfYM dks fojatd pw.kZ ds lkFk xeZ fd;k tkrk gSA Acetaldehydeisheatedwithbleachingpowder. (ii) ,Fkkby czksekbM dks KCN ds lkFk xeZ fd;k tkrk gSA EthylbromideisheatedwithKCN. (iii) ,Fkkby ,sYdksgkWy dks vkWDlhÑr fd;k tkrk gSA Ethylalcholisoxidised.2. fuEu dks izkIr djus ds fy, jklk;fud vfHkfØ;k fy[kksA Writechemicalreactiontoobtainthefollowing: (i) ehFksu ls DyksjksiQkWeZ (Methanetochloroform)

(ii) DyksjksiQkWeZ ls bZFkkbu (Chloroformtoethyne)

3. crkb, D;k gksrk gS tc (Whathappenswhen?)% (i) DyksjkscsfUtu ds lkFk izfrfØ;k Cl2/FeCl ChlorobenzeneisallowedtoreactwithCl2/FeCl. (ii) ,Fkkby DyksjkbM dk AgNO2 ds lkFk izfrfØ;k EthylchlorideisreactedwithAgNO2. (iii) 2-Bromo-pentane dk ,Ydksgfyd KOH ds lkFk izfrfØ;k 2-Bromo-pentaneisinteractedwithalcoholicKOH.

10. vYdksgy] bZFkj ,oa fiQukWy1. D;k gksrk gS tcfd \ (Whathappenswhen?) (a) ,FksukWy dk vkWDlhdj.k vEyh; KMnO4 ?kksy ds }kjk fd;k tkrk gS \ EthanolisoxidisedwithacidifiedKMnO4solution? (b) ,FksukWy dh vfHkfØ;k PCl5 ls djkbZ tkrh gS \ EthanolistreatedwithPCI5?

�3 iz'uksa ds mÙkj ds fy, ns[ksa Read and Pass Sure Success Guess Paper–2022BhaRtiya Bhawan

2. fuEufyf[kr ifjorZu vki dSls fn[kk;saxsA (Howwillyoubringaboutthefollowingconversions?) (i) ,sfuyhu dk iQhukWy esa (AnilineintoPhenol) (ii) iQhukWy dk ,slhVksiQhuksu esa (PhenolintoAcetophenon)3. fuEufyf[kr ;kSfxdksa ds vkbZ;wih,lh (IUPAC) uke fyf[k,A WritetheIUPACnameofthefollowingcompounds

(i) CH3 — CH — CH — C — CH3

CH3

CH3CH3 OH

(ii) H3C — CH — CH2 — CH — CH — CH2 — CH3

OHOH C2H3

(iii) CH3 — CH — CH — CH3

OHOH

(iv) HO — CH2 — CH — CH2 — OH

OH

(v)

CH3OH

(vi)

CH3

OH

(vii)

CH3

OHCH3

(viii)

CH3

OH

CH3

(ix) CH3 — O — CH2 — CH — CH3

CH3(x) C6H5 — O — CH2 — CH3(xi) C6H5 — O — C7H�5(n–)(xii) CH3 — CH2 — O — CH — CH2 — CH3

CH3(xiii) CH3 — CH2 — N — CH3

CH3

(xiv) CH3 — CH — C — NH2

OBr

(xv) CH3 — CH2 — O — CH — CH3

CH3

�4 iz'uksa ds mÙkj ds fy, ns[ksa Read and Pass Sure Success Guess Paper–2022BhaRtiya Bhawan

4. esFksuksbd vEy rFkk ,Fksuksbd vEy ds chp vki vUrj dSls Li"V djsaxs \ Howwillyoudistinguishbetweenmethanoicacidandethanoicacid? 5. D;k gksrk gS tc (What happens when)– (a) bFkhu dks lkUæ xU/dkEy esa izokfgr djrs gSa ,oa mRikn dks ty ds lkFk mckyrs

gSa \ Ethene ispassed intoconcentratedH2SO4and theproductboiledwith

water. (b) bFkkby ,Fksuks,V dks tyh; KOH ?kksy ds lkFk mckyk tkrk gS\ EthylethanoateisboiledwithKOHaq. (c) feFkkby eSXuhf'k;e vk;ksMkbM ,oa esFkukWy dks xeZ djrs gSa \ Methylmagnesiumiodideisheatedwithmethanol. (d) ,slhVSfYMgkbM dks VkWfyu`l izfrdkjd ds lkFk xeZ djrs gSa \ AcetaldehydeisheatedwithTollen'sreagent. (e) iQhukWy ds HkLeh; ?kksy dks CO2 ds lkFk mPp nkc ij xeZ dj] mRikn dks

vEyh; ty ds lkFk xeZ djrs gSa \ AlkalinesolutionofphenolisheatedwithCO2underhighpressureand

thentheproductisacidhydrolysed.6. fuEufyf[kr dks dSls ifjofrZr djsaxs \ (Howwillyouconvertthefollowing?) (a) feFksu ls bFksu (MethanetoEthane) (b) bFksukWy ls bFkkby ,lhVsV (EthanoltoEthylacetate)7. fuEufyf[kr esa varj Li"V djus ds fy, tk¡p@tk¡pksa dks fy[ksa A (Writethetestbywhichfollowingaredistinguished) (i) bFksukWy vkSj ,flVfYMgkbM (EthanolandAcetaldehyde) (ii) fiQukWy vkSj dkcksZfDlfyd vEy (Phenolandcarboxylicacid) (iii) çkbejh] lsds.Mjh ,oa Vjf'k;jh vYdksgkWy (Primary,secondaryandtertiaryalcohols)

11. ,fYMgkbM] dhVksu vkSj dkcksZfDlfyd vEy

1. laf{kIr fVIi.kh fyf[k, (Writeshortnotes) (i) ,sYMksy la?kuu (Aldol condensation) (ii) dSfutkjks vfHkfØ;k (Cannizaro Reaction)

CH3— C + H — C — C O

O H

H

dil. base

(Acetaldehyde)

two moleculeH

(Ethenal)

2. fuEufyf[kr inksa ('kCnksa) ls vki D;k le>rs gSa \ izR;sd dk ,d mnkgj.k nhft,A Whatismeantbythefollowingterms?Giveanexampleineachcase: (i) lk;uksgkbfMªu (Cyanohydrin) (ii) ,slhVy (Acetal) (iii) lsehdkcsZtksu (Senucarbezone) (iv) ,sYMksy (Aldol) (v) gseh,slhVy (Hemiacetile) (vi) vkWfDle (Oxime)

�5 iz'uksa ds mÙkj ds fy, ns[ksa Read and Pass Sure Success Guess Paper–2022BhaRtiya Bhawan

(vii) dhVy (Ketal) (viii) behu (Emine) (ix) 2, 4-DNP O;qRiUu (2,4–DNPderivite) (x) f'kiQ {kkjd (Shifbase)3. D;k gksrk gS tc (Whathappenswhen) (a) Ethyl ethanoate dks KOH aq. ds lkFk xeZ fd;k tkrk gSA (EthylethanoateisboiledwithKOHaq). (b) Acetaldehyde dks Tollen's reagent ds lkFk xeZ fd;k tkrk gSA (AcetaldehydeisheatedwithTollen'sreagent.) (c) Toluene dks chromyl chloride ds lkFk CS2 esa xeZ fd;k tkrk gS vkSj hydrolysed

gksrk gSA (Toluene is heatedwith chromyl chloride inCS2 and the product is

hydrolysed.) (d) LiAlH4 dry ether dks Crotonaldehyde ds lkFk izfrfØ;k gksus ij vEy

hydrolysed gksrk gSA (CrotonaldehydeistreatedwithLiAlH4dryetherandtheproductisacid

hydrolysed.)4. fuEufyf[kr dks dSls ifjofrZr djsaxs \ (Howwillyouconvertthefollowing?) (a) feFksu ls DyksjksiQkeZ (MethanetoChloroform) (b) bFksuy ls bFksuksbd vEy (EthanoltoEthanoicacid) (c) ,lhfVd vEy ls feFksu (AceticAcidtoMethane)5. fuEufyf[kr esa varj Li"V djus ds fy, tk¡p@tk¡pksa dks fy[ksa A (Writethetestbywhichfollowingaredistinguished) (i) ,fYMgkbM vkSj fdVksu (AldehydeandKetone) (ii) iQkWfeZd vEy ,flfVd vEy (Formicacidandaceticacid)

12. ,ehu1. ,sfuyhu] feFkkby,sehu ls de {kkjh; gS] dkj.k fyf[k,A WhypKb ofanilineismoreweakerthanthatofmethylamine?2. ,sekbM ,sehuk ls vf/d vEyh; gksrk gS] D;ksa \ WhyAmideislessacidicthanamine?

13. tSo&v.kq1. dkcksZgkbMªsV D;k gS \ budk oxhZdj.k dSls fd;k tkrk gS \ WhatareCarbohydrates?Howaretheyclassified?2. U;wfDyd vEy fdls dgrs gSa\ blds tSfod dk;ks± dk o.kZu dhft,A Whatisnucleicacid?Explainitsbiologicalfunctions.3. Mh-,u-,- rFkk vkj-,u-,- esa vUrj Li"V dhft,A DifferentiatebetweenDNAandRNA.