Why are aldehydes generally more reactive than ketones in nucleophilic addition reactions?

Q: What is the correct answer for CBSE12?

The correct answer is C. Aldehydes are more reactive than ketones in nucleophilic addition reactions due to two main reasons: (1) Steric hindrance: Aldehydes have only one alkyl group, allowing easier approach for nucleophiles compared to ketones with two alkyl groups. (2) Electronic effect: The carbonyl carbon in aldehydes is more electrophilic because the electron-donating effect of one alkyl group is less than that of

Q: Why are aldehydes generally more reactive than ketones in nucleophilic addition reactions?

The correct answer is C. Aldehydes are more reactive than ketones in nucleophilic addition reactions due to two main reasons: (1) Steric hindrance: Aldehydes have only one alkyl group, allowing easier approach for nucleophiles compared to ketones with two alkyl groups. (2) Electronic effect: The carbonyl carbon in aldehydes is more electrophilic because the electron-donating effect of one alkyl group is less than that of

Q: What are the options for this CBSE12 question?

A. Ketones have a more electrophilic carbonyl carbon due to two alkyl groups. · B. Aldehydes have greater steric hindrance around the carbonyl carbon. · C. Aldehydes have less steric hindrance and a more electrophilic carbonyl carbon. · D. Ketones have a less polar carbonyl group compared to aldehydes.

Question

Why are aldehydes generally more reactive than ketones in nucleophilic addition reactions?

FirstInTest · Accepted Answer

Aldehydes are more reactive than ketones in nucleophilic addition reactions due to two main reasons: (1) Steric hindrance: Aldehydes have only one alkyl group, allowing easier approach for nucleophiles compared to ketones with two alkyl groups. (2) Electronic effect: The carbonyl carbon in aldehydes is more electrophilic because the electron-donating effect of one alkyl group is less than that of two alkyl groups in ketones, making the carbon more positive and thus more susceptible to nucleophilic attack.

Answer

Ketones have a more electrophilic carbonyl carbon due to two alkyl groups.

Answer

Aldehydes have greater steric hindrance around the carbonyl carbon.

Answer

Aldehydes have less steric hindrance and a more electrophilic carbonyl carbon.

Answer

Ketones have a less polar carbonyl group compared to aldehydes.

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