JEE Main2012ChemistryGeneral Organic ChemistryActual

Among the following the order of reactivity towards nucleophilic addition is

Options

ACH ₃ CHO > CH ₃ COCH ₃> HCHO
BHCHO > CH ₃ CHO > CH ₃ COCH ₃
CCH ₃ CHO > HCHO > CH ₃ COCH ₃
DCH ₃ COCH ₃> CH ₃ CHO > HCHO

Correct answer

B. HCHO > CH ₃ CHO > CH ₃ COCH ₃

Step-by-step solution

Presence of alkyl group in carbonyl compounds decreases their reactivity towards nucleophilic addition. Further greater the number of such groups lesser will be the reactivity towards nucleophilic addition correct order is

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