(D) The reaction $CH_3CHO + HCN \to CH_3CH(OH)CN$ involves the nucleophilic addition of cyanide to the carbonyl carbon of acetaldehyde.Since the carbo

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(D) The reaction $CH_3CHO + HCN \to CH_3CH(OH)CN$ involves the nucleophilic addition of cyanide to the carbonyl carbon of acetaldehyde.Since the carbonyl carbon is planar,the cyanide ion can attack from either side with equal probability.This leads to the formation of both $d$ (dextro) and $l$ (laevo) enantiomers in equal amounts.Therefore,the resulting product is a racemic mixture.

Class 12 Chemistry 1 Aldehydes, Ketones and Carboxylic Acids: Aldehydes and Ketones Properties

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In the reaction $CH_3CHO + HCN \to CH_3CH(OH)CN$,a chiral centre is produced. This product would be

AIPMT 1995 All AIPMT

A
Laevo rotatory
B
Meso compound
C
Dextro rotatory
D
Racemic mixture

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1 Aldehydes, Ketones and Carboxylic Acids: Aldehydes and Ketones

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Properties

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AIPMT 1995 Paper All AIPMT years →

Amongst the following compounds, the one that will not respond to Cannizzaro reaction upon treatment with alkali is

MediumWBJEE 2016

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The reactant $(A)$ will be:

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Give applications of cyanohydrins with acetaldehyde with suitable reactions. $OR$ Give following conversions by using acetaldehyde as starting material.
$(a)$ Lactic acid and acrylic acid
$(b)$ Alanine
$(c)$ $1$-amino propane-$2$-ol

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Arrange the following in increasing order of their reactivity for nucleophilic addition reaction:

MediumAP EAMCET 2022

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Reaction: $CH_3-CO-CH_2-CH_2-CH_2-CH_2-CHO \xrightarrow{HO^{-}/\Delta} \underset{(73\%)}{(A)}$
Product $(A)$ is

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In the reaction $CH_3CHO + HCN \to CH_3CH(OH)CN$,a chiral centre is produced. This product would be

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Amongst the following compounds, the one that will not respond to Cannizzaro reaction upon treatment with alkali is

The reactant $(A)$ will be:

Give applications of cyanohydrins with acetaldehyde with suitable reactions. $OR$ Give following conversions by using acetaldehyde as starting material.$(a)$ Lactic acid and acrylic acid$(b)$ Alanine$(c)$ $1$-amino propane-$2$-ol

Arrange the following in increasing order of their reactivity for nucleophilic addition reaction:

Reaction: $CH_3-CO-CH_2-CH_2-CH_2-CH_2-CHO \xrightarrow{HO^{-}/\Delta} \underset{(73\%)}{(A)}$ Product $(A)$ is

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Give applications of cyanohydrins with acetaldehyde with suitable reactions. $OR$ Give following conversions by using acetaldehyde as starting material.
$(a)$ Lactic acid and acrylic acid
$(b)$ Alanine
$(c)$ $1$-amino propane-$2$-ol

Reaction: $CH_3-CO-CH_2-CH_2-CH_2-CH_2-CHO \xrightarrow{HO^{-}/\Delta} \underset{(73\%)}{(A)}$
Product $(A)$ is