A=CH3CHOB=CH3CH2CHOC=CH3COCH3D=CH3COCH2CH3Correct decreasing of reactivity towards nucleophilic addition reactions
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a
A > B > C > D
b
A < B < C < D
c
D > C > B > A
d
D < C < B < A
answer is A.
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Detailed Solution
Towards nucleophilic addition reactions aldehydes are more reactive than ketnes due to 1.Electronic factor: Carbonyl carboon in ketones is less electrophilic because of presence of two +I alkyl groups.2. Due to steric hindrance nucleophile aproachability towards electrophilic carbon is decreased.Reactivity of CH3CHO>CH3CH2CHO>CH3COCH3>CH3COCH2CH3 .