3CH2 CH2 CH=CH2 3 CH2 C CH 3 2CH C CH 2 CH2 · A compound C 5 H 8 which give white ppt with...
Transcript of 3CH2 CH2 CH=CH2 3 CH2 C CH 3 2CH C CH 2 CH2 · A compound C 5 H 8 which give white ppt with...
A compound C5H8 which give white ppt with ammonical
AgNO3. A give (CH3)2CHCOOH with acidic K2Cr2O7
then compound is
(A) CH3CH2–CH2–CH=CH2
(B) CH3–CH2–CCH
(C) (CH3)2CH–CCH
(D) CH2=CH–CH2–CH=CH2
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01
Which of the following reaction does not lead to
formation of acetic acid -
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02
CH3CHO CH3CH3
The reaction is called as –
(A) Wolf-kishner reaction
(B) Clemmensen reduction
(C) Wittig reaction
(D) Sandmeyer reaction
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03
HCl.Conc
Hg–Zn
What is the product formed when acetone heated
in presence of Mg/Hg followed by hydrolysis is -
(A) CH3CH2CH3 (B)
(C) (D) CH3CHO
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04
CH3–CH–CH3
OH
CH3–C–C–CH3
OH HO
CH3 H3C
A compound with molecular formula C3H6O, not
gives silver mirror with Tollen's reagent but forms
oxime with hydroxyl amine. Compound will be-
(A) CH2=CH–CH2–OH
(B) CH3CH2CHO
(C) CH2=CH–O–CH3
(D) CH3COCH3
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05
What will happen when diethyl ether treated
with hot and conc. HI -
(A) Ethyl alcohol (B) Ethyl iodide
(C) Methyl iodide (D) Methanol
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06
When formaldehyde reacts with NH3 then gives-
(A) Urotropine
(B) Formaldehyde ammonia
(C) Formaline
(D) Hydro benzamide
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07
Maximum dehydration takes place that-
(A) (B)
(C) (D)
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08
O
OH
O
OH O
OH
CH2
OH
When CH2=CH–COOH is reduced with LiAlH4,
the compound obtained will be -
(A) CH3–CH2 –CH2OH
(B) CH3–CH2–CHO
(C) CH3–CH2–COOH
(D) CH2=CH–CH2OH
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09
Among the following compounds which can be
dehydrated very easily is -
(A) CH3CH2CH2CH2CH2OH (B)
(C) (D)
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10
CH3CH2CH2CHCH3
OH
CH3CH2CCH2CH3
CH3
OH
CH3CH2CHCH2CH2OH
CH3
In the following sequence of reactions, CH3CH2OH
A B C D, then compound
‘D’ is
(A) butanal (B) n-butyl alcohol
(C) n-propyl alcohol (D) propanal
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11
2IP
Ether
Mg
HCHO OH2
A liquid was mixed with ethanol and a drop of
concentrated H2SO4 was added. A compound
with a fruity smell was formed. The liquid was
(A) HCHO (B) CH3COCH3
(C) CH3COOH (D) CH3OH
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12
p–cresol reacts with chloroform in alkaline medium to give the compound A
which adds hydrogen cyanide to form, the compound. B The latter on acidic
hydrolysis gives chiral carboxylic acid. The structure of the carboxylic acid
is -
(A) (B)
(C) (D)
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13
CH3
CHCOOH
OH OH
CH3
CHCOOH
OH
OH
CH3
CH2COOH OH
CH3
CH2COOH
OH
The electrophile involved in the above reaction is -
(A) dichlorocarbene ( :CCl2)
(B) trichloromethyl anion
(C) formyl cation ( )
(D) dichloromethyl cation ( )
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14
OH
+ CHCl3 + NaOH –
O–Na
+
CHO
CCl3
CHO
2CHCH
The structure of the compound that gives a tribromo
derivative on treatment with bromine water is -
(A) (B)
(C) (D)
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15
CH2OH CH3 OH
CH3
OH
CH3
OH
The major product obtained on interaction of
phenol with sodium hydroxide and carbon
dioxide is -
(A) salicylaldehyde (B) salicyclic acid
(C) phthalic acid (D) benzoic acid
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16
Phenol, when it first reacts with concentrated
sulphuric acid and then with concentrated
nitric acid, gives -
(A) o-nitrophenol (B) p-nitrophenol
(C) nitrobenzene (D) 2,4,6-trinitrophenol
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17
In the anion HCOO— the two carbon-oxygen bonds are
found to be of equal length. What is the reason for it ?
(A) The anion HCOO— has two resonating structures
(B) The anion is obtained by removal of a proton from
the acid molecule
(C) Electronic orbitals of carbon atom are hybridised
(D) The C=O bond is weaker than the C—O bond
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18
Which one of the following does not have sp2
hybridized carbon ?
(A) Acetone (B) Acetic acid
(C) Acetonitrile (D) Acetamide
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19
The compound formed as a result of oxidation
of ethyl benzene by KMnO4 is -
(A) benzophenone (B) acetophenone
(B) benzoic acid (D) benzyl alcohol
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20
A liquid was mixed with ethanol and a drop of
concentrated H2SO4 was added. A compound
with a fruity smell was formed. The liquid was :
(A) CH3OH (B) HCHO
(C) CH3COCH3 (D) CH3COOH
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21
The major product of nitration of Benzoic acid
is -
(A) 3-Nitrobenzoic acid
(B) 4-Nitrobenzoic acid
(C) 2-Nitrobenzoic acid
(D) 2,4-Dinitrobenzoic acid
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22
When propionic acid is treated with aqueous
NaHCO3, CO2 is librated. The ‘C’ of CO2 comes
from -
(A) Methyl group
(B) Carboxylic acid group
(C) methylene group
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23
Benzoyl chloride is prepared from benzoic acid
by –
(A) Cl2, h (B) SO2Cl2
(C) SOCl2 (D) Cl2, H2O
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24
Which of the following acids has the smallest
dissociation constant ?
(A) CH3CHFCOOH (B) FCH2CH2COOH
(C) BrCH2CH2COOH (D) CH3CHBrCOOH
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25
How will you convert butan-2-one to propanoic
acid ?
(A) Tollen's reagent (B) Fehling's solution
(C) NaOH/I2/H+ (D) NaOH/NaI/H+
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26
Ethyl ester P. The product P will be -
(A) (B)
(C) (D)
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27
CH3
OH H3C
H3C C2H5
OH H5C2
H3C
C2H5
OH H5C2
H5C2 C2H5
OH H7C3
H5C2
Excess
MgBrCH3
CH3CH2COOH X Y
Y in the above reactions is -
(A) Lactic acid (B) Ethylamine
(C) Propylamine (D) Alanine
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28
PdRe
Br2 .)alc(NH3
The organic product formed in the reaction
C6H5COOH
(A) C6H5CH2OH
(B) C6H5COOH & CH4
(C) C6H5CH3 & CH3OH
(D) C6H5CH3 & CH4
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29
OH)ii(
LiAlH)i(
3
4
Products formed by P & Q can be differentiated by
(A) 2,4-DNP
(B) Lucas reagent (ZnCl2) conc. HCl
(C) NaHSO3
(D) Fehlings solution
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30
OCOCH3
P
Q
OCOCH3
Acidic
Hydrolysis