Which of the following has minimum reactivity | vedclass

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(D) The reactivity of carbonyl compounds towards nucleophilic addition reactions decreases as the number and size of alkyl groups attached to the carb

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$CH_3COCH_2CH_3$

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(D) The reactivity of carbonyl compounds towards nucleophilic addition reactions decreases as the number and size of alkyl groups attached to the carbonyl carbon increase.This is due to the $+I$ effect,which reduces the partial positive charge on the carbonyl carbon,and steric hindrance,which blocks the approach of the nucleophile.Comparing the options: $CH_2O$ (formaldehyde) has no alkyl groups,$CH_3CHO$ (acetaldehyde) has one methyl group,$CH_3COCH_3$ (acetone) has two methyl groups,and $CH_3COCH_2CH_3$ (butanone) has one methyl and one ethyl group.Since the ethyl group is larger than the methyl group,$CH_3COCH_2CH_3$ provides the greatest steric hindrance and electronic stabilization of the carbonyl carbon,making it the least reactive towards nucleophiles.

Which of the following has minimum reactivity towards nucleophiles?

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