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Introduction to Aldehydes and Ketones

In carbonyl c...

Question

In carbonyl compounds, the carbonyl oxygen acts as

A

Lewis acid

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B

Lewis base

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C

Amphoteric

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D

Can not predict

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Solution

The correct option is B Lewis base
The carbon-oxygen double bond is polarised due to higher electronegativity of oxygen relative to carbon. Hence, the carbonyl carbon is an electrophilic (lewis acid) and carbonyl oxygen is a nucleophilic (lewis base) centre. Hence, the correct answer is option (b).

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Introduction to Aldehydes and Ketones

Standard XII Chemistry

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