Question

Answer is c please tell reason​

Answer 1

Answer:

c

Explanation:

primary aliphatic amines are weakest

Answer 2

Answer:

The acid/base process you're looking at in this question is the dissociation of a proton from the NH2 to form NH- (acid) or the acceptance of a proton by the NH2 to form NH3+ (base). So anything that stabilizes a negative charge on the nitrogen increases acidity, but also destabilizes the positive charge so it decreases basicity. Negative charge is stabilized by the carbonyl in acetamide more than in ethyl amine. The carbonyl, with its double bond and the electronegative oxygen, help to delocalize and stabilize the negative charge.

That's why CH3CONH2 a weak base but is a strong acid.

This is the same reason why a carboxylic acid is more acidic than an alcohol.