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Structural and Physical Properties of Carbonyls

Aldehydes and...

Question

Aldehydes and ketones both undergo condensation with :

A

N H_{2} O H

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B

N a H S O_{3}

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C

H C N

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D

R M g X

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Solution

The correct option is A $N H_{2} O H$
hydroxylamine undergoes condensation with both aldehydes and ketones

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Q. Assertion :Aldol condensation can be catalysed both by acids and bases. Reason:

β

Hydroxy aldehydes or ketones readily undergo acid catalysed dehydration.

Q. Assertion (A) :

C H_{3} C H O

on reaction with dil. NaOH forms aldol.
Reason (R) : Aldehydes and ketones having

α

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Both aldehydes and ketones reduce Tollen's reagent.

Aldehydes and ketones both contain the carbonyl group.

Q. The carbon atom in carbonyl group is ______ hybridised. The carbonyl group in aldehydes and ketones undergoes ______ reactions. Aldehydes which have

α

- H atom undergo ______ reaction while aldehydes which have no

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