A) the + I-effect of the alkyl groups increases the electron deficiency of the carbonyl carbon
B) the + I-effect of the alkyl groups decreases the electron deficiency of the carbonyl carbon
C) of steric hindrance to the attacking nucleophile
D) both (b) and (c) options are correct
Correct Answer: D
Solution :
Nucleophilic attack can be faster at carbon containing more partial (+) charge (more electrophilic centre) and less steric crowding. Rate of Nucleophilic addition reaction \[\propto {{\delta }^{+}}\] at C = 0 group. \[C=O\,\propto \,{{\delta }^{+}}\propto \,\frac{1}{steric\,hinderance\,at\,C=O\,group}\]
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