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CBSE

Subject

Chemistry

NEET Chemistry : Aldehydes, Ketones and Carboxylic Acids

Multiple Choice Questions

61.

Aldehydes or ketones are treated with-bromo ester in the presence of zinc to form $α$ -hydroxy ester followed by dehydration to form $α$ , $β$ -unsaturated ester.This reaction is known as:

Witting reaction.
Tischenko reaction.
Reformatsky reaction.
Crossed-cannazzaro's reaction.

62.

HCHO reacts with CH₃MgI to give:

CH₃CH₂OH
CH₃OH
CH₃CH₂I
CH₃I

63.

The reaction,

C₆H₅CHO + CH₃COOC₂H₅ $\to$ C₆H₅CH = CHCOOC₂H₅ , is called

Benzoin condensation
Claisen condensation
Cannizaro's reaction
Perkin reaction

64.

In the following reduction, reducing agent used is:

DIBAH
LiAlH₄
NaAlH₄
H₂/PdBaSo₄

65.

Which one of the following reactions is called Rosenmund reaction ?

Aldehydes are reduced to alcohols
Acids are converted to acid chlorides
Alcohols are reduced to hydrocarbons
Acid chlorides are reduced to aldehydes

66.

The major organic product formed from the following reaction $\to_{(ii) {LiAlH}_{4} (iii) H_{2} O}^{(i) {CH}_{3} {NH}_{2}}$ ... is

67.

Indicate correct synthesis of carboxylic acid from organometallic compound :

All of the above

68.

The correct structure of the stable compound which is obtained when acetophenone react with a base C₂H₅OH is

69.

In a set of reactions, acetic acid yielded a product D.

CH₃COOH $\overset{{SOCl}_{2}}{\to}$ A $\to_{anhyd . {AlCl}_{3}}^{Benzene}$ B $\overset{HCN}{\to}$ C $\overset{HOH}{\to}$ D

The structure of D would be

70.

Which among the following is strongest acid ?

H(ClO)O₂
H(ClO)O₃
H(ClO)O
H(ClO)

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