Arrange the following compounds in increasing order of their reactivity in nucleophilic addition reactions.
Ethanal, Propanal, Propanone, Butanone

Butanone < Propanone < Propanal < Ethanal

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Propanone < Butanone < Ethanal > Propanal

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Propanal < Ethanal < Propanone < Butanone

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Ethanal < Propanal < Propanone < Butanone

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Solution

The correct option is B Butanone < Propanone < Propanal < Ethanal
In nucleophilic reaction, less steric reactant is preferred.
So answer is Butanone<Propanone<propanal<ethanal

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Arrange the following compounds in increasing order of their reactivity in nucleophilic addition reactions.

(i) Ethanal, Propanal, Propanone, Butanone.

(ii) Benzaldehyde, p-Tolualdehyde, p-Nitrobenzaldehyde, Acetophenone.

Hint: Consider steric effect and electronic effect.

{CH}_{3} - {CH}_{2} - CHO

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