Observe the following structures and pick up the correct statement ?

Carbonyl carbon of I is more electrophilic than that of II

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Carbonyl carbon of I is less electrophilic than that of II

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Carbonyl carbon of both structures have equal electrophilic character

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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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Similar questions

Q. The carboxylic carbon is less electrophilic than carbonyl carbon due to resonance.

Q. Which of the following shows the weakest electrophilic character of carbonyl carbon?

Which of the following statement is true regarding esterification of a carboxylic with an alcohol ?

(i) It is carried out in presence of a strong acid which acts as a catalyst.

(ii) The strong acid makes the carbonyl carbon more electrophilic, and hence causes the alcohol, a strong nucleophile to attack on the carbonyl carbon.

(iii) The strong acid makes the carbonyl group more electrophilic which is thus attacked easily by an alcohol. a weak nucleophile.

(iv) Esterification can be done even in absence of a strong, acid.

Q. Assertion :Ketones are less electrophilic than aldehydes. Reason: The positive inductive effect of the second alkyl radical reinforces that of the first one decreasing still further the partial positive charge on the carbonyl carbon atom.This reduces the attraction of the atom for nucleophilic reagents. Hence ketones are less electrophilic.

Statement I: Metal-carbon bond in metal carbonyls posess both s and p character.

Statement II: Oxidation state of metal in metal carbonyl is zero.

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Observe the following structures and pick up the correct statement ?

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.

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.