Question

Statement-1. In water, orthoboric acid behaves as a weak monobasic acid
Statement-2. In water, orthoboric acid acts as a proton donor.
A. Statement-1 is True, Statement-2 is True , Statement-2 is the correct explanation of Statement - 1 .
B. Statement-1 is True, Statement - 2 is True , Statement-2 is NOT a correct explanation for Statement-1.
C. Statement-1 is True, Statement-2 is False.
D. Statement-1 is False, Statement-2 is True.

Answer 1

Correct Answer - C
`H_(3)BO_(3)` (Orthoboric acid ) is a weak monobasic acid
`H_(3)BO_(3)+H_(2)O hArr B(OH)_(4)^(-)+H^(+)`
It does not donate proton but accepts `OH^(-)` ion from water. Thus, statement-1 is true but statement -2 is false.