Preparation of Aldehydes and Ketones

IMPORTANT

Preparation of Aldehydes and Ketones: Overview

This topic covers concepts such as Methods of Preparation of Aldehydes and Ketones, Preparation of Aldehydes and Ketones by Oxidation of Alcohols, Preparation of Aldehydes and Ketone by Hydration of Alkynes, etc.

Important Questions on Preparation of Aldehydes and Ketones

EASY
IMPORTANT

The reagents used for the following conversions are:

(i) cyclohexanol to cyclohexan-1-one           

(ii) bromobenzene to benzoic acid

MEDIUM
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Which of the following on heating with aqueous KOH, produces acetaldehyde?

HARD
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1-methylcyclohexa-1, 3-diene on reductive ozonolysis with Zn/H2O yields products A and B.The total number of sp2 hybridized carbons in A and B are

EASY
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Transformation of benzoyl chloride to benzaldehyde by the hydrogenation in the presence of palladium on barium sulphate is named as

MEDIUM
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Isobutyl alcohol and secondary butyl alcohol can be distinguished by-

MEDIUM
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In the following reaction,

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X and Y are :

MEDIUM
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In the reaction,

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X and Y are :

EASY
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On hydrolysis in the presence of acid, nitroalkane gives

EASY
IMPORTANT

Identify the product of the following reaction:

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MEDIUM
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Which of the following is not synthesized by Rosenmund reduction:

EASY
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Ethyl methyl ketone is obtained by heating calcium salts of

HARD
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The Grignard's reagent used to convert Benzonitrile to acetophenone (benzophenone) is:

EASY
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In the following reaction, P gives two products Q and R each in 40% yield.

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If the reaction is carried out with 420 mg of P, the reaction yields 108.8 mg of Q. The amount of R produced in the reaction is closest to

MEDIUM
IMPORTANT

The major product of the following reaction. 

Question Image is

MEDIUM
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The major product(s) in the following reactions is/are

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HARD
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Matching the following:

  Reaction conditions   Name of the reaction
a Question Image i Gatterman-Koch
b Question Image ii Etard
c Question Image iii Rosenmund

MEDIUM
IMPORTANT

The products P and Q of the following reactions, respectively are:

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MEDIUM
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Periodic oxidation of 1, 2-cyclopentanediol is :