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 -


02

CH3CHO CH3CH3

The reaction is called as –

(A) Wolf-kishner reaction

(B) Clemmensen reduction

(C) Wittig reaction

(D) Sandmeyer reaction


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


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


05

What will happen when diethyl ether treated

with hot and conc. HI -

(A) Ethyl alcohol (B) Ethyl iodide

(C) Methyl iodide (D) Methanol


06

When formaldehyde reacts with NH3 then gives-

(A) Urotropine

(B) Formaldehyde ammonia

(C) Formaline

(D) Hydro benzamide


07

Maximum dehydration takes place that-

(A) (B)

(C) (D)


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


09

Among the following compounds which can be

dehydrated very easily is -

(A) CH3CH2CH2CH2CH2OH (B)

(C) (D)


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


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


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)


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 ( )


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)


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


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


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


18

Which one of the following does not have sp2

hybridized carbon ?

(A) Acetone (B) Acetic acid

(C) Acetonitrile (D) Acetamide


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


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


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


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

(D) bicarbonatewww.Gangwarinstitute.com Contact : 8400-582-582, 8604-582-582

23

Benzoyl chloride is prepared from benzoic acid

by –

(A) Cl2, h (B) SO2Cl2

(C) SOCl2 (D) Cl2, H2O


24

Which of the following acids has the smallest

dissociation constant ?

(A) CH3CHFCOOH (B) FCH2CH2COOH

(C) BrCH2CH2COOH (D) CH3CHBrCOOH


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+


26

Ethyl ester P. The product P will be -

(A) (B)

(C) (D)


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


28

PdRe

Br2 .)alc(NH3

The organic product formed in the reaction

C6H5COOH

(A) C6H5CH2OH

(B) C6H5COOH & CH4

(C) C6H5CH3 & CH3OH

(D) C6H5CH3 & CH4


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


30

OCOCH3

P

Q

OCOCH3

Acidic

Hydrolysis

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...

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