Urea - Vidyadip

MCQ

Urea

A
Is an amide of carbonic acid
✓
It is diamide of carbonic acid
C
Gives carbonic acid on hydrolysis
D
Resembles carbonic acid

✓

Answer

Correct option: B.

It is diamide of carbonic acid

b
(b)Urea is the diamide of carbonic acid.

$\mathop {HO - \mathop {\mathop C\limits^{||} }\limits^O - OH}\limits_{{\text{carbonic acid}}} + 2N{H_3}\xrightarrow{{ - {H_2}O}}\mathop {{H_2}N - \mathop {\mathop C\limits^{||} }\limits^O - N{H_2}}\limits_{{\text{Urea}}} $
So two mole of $N{H_3}$ required that why it is the diamide of carbonic acid.

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