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Question

Observe the following structures and pick up the correct statement ?


A

Carbonyl carbon of I is more electrophilic than that of II

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B

Carbonyl carbon of I is less electrophilic than that of II

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C

Carbonyl carbon of both structures have equal electrophilic character

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D

It depends upon the complete structure of the compound

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Solution

The correct option is B

Carbonyl carbon of I is less electrophilic than that of II


In structure II, presence of positive charge on oxygen causes the displacement of π electrons toward oxygen, making carbon more electron deficient than that in unprotonated carbonyl group.


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