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Question
Nucleophilic addition reaction will be most favoured in
Nucleophilic addition reaction will be most favoured in
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Solution
The correct option is B CH3CHO
Nucleophilic addition reaction will be most favoured in the compounds with least electron density at CO bond.
If the group attached to carbonyl carbon are bulky, there will be steric hindrance for the upcoming nucleophile. Also, the +I groups attached to the carbonyl carbon stabilise the positive charge on carbonyl carbon which reduce its electrophilic nature.
Hence, compounds with less size groups attached to carbonyl carbon will be more reactive.
Thus,
Order of electron density at CO bond in the given compounds:
B < A < D < C
So, nucleophilic addition reaction will be most favored in CH3CHO.
Hence, option "B" is the correct answer.
Nucleophilic addition reaction will be most favoured in the compounds with least electron density at CO bond.
If the group attached to carbonyl carbon are bulky, there will be steric hindrance for the upcoming nucleophile. Also, the +I groups attached to the carbonyl carbon stabilise the positive charge on carbonyl carbon which reduce its electrophilic nature.
Hence, compounds with less size groups attached to carbonyl carbon will be more reactive.
Thus,
Order of electron density at CO bond in the given compounds:
B < A < D < C
So, nucleophilic addition reaction will be most favored in CH3CHO.
Hence, option "B" is the correct answer.
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