Aliphatic Compounds Containing Nitrogen - Result Question 11

12. The major product obtained in the following reaction is

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(2019 Main, 9 Jan II)

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Answer:

Correct Answer: 12. (b)

Solution:

Rate of acetylation : $-NH _2>-OH$ because $N$-bases are stronger than $O$-bases. Size of $N$-atom is larger than $O$-atom and at the same time, $N$ atom is less electronegative than $O$-atom. So, $N$-atom of the $-\ddot{N} H _2$ group can donate its lone pair of electrons (Lewis basicity) more easily than that of $O$ atom of the $-\ddot{O}H$ group.

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