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Arrange the following compounds in incre...

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.

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(i) Butuane `lt` Propanone `lt` Propanal `lt` Ethanal `lt` Methanal
(ii) Acetone `lt` Acetaldehyde `lt` Formaldehyde
(iii) Acetophenone `lt` p-Tolualdehyde `lt` Benzaldehyde `lt` p-nitorbenzaldehyde.
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