Question

STATEMENT-1 :In water, orthoboric acid behaves as a weak monobasic acid
because
STATEMENT-2 : In water, orthoboric acid acts as a proton donor.

• A. Statement-1 is True, Statement-2 is True; Statement-2 is a correct explanation for 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

Answer: (C)

Orthoboric acid is a weak monobasic acid. It is not a protonic acid but acts as Lewis acid by accepting electrons to form a hydroxyl ion.
$B( OH )_{3}+2 HOH \rightarrow\left[ B ( OH )_{4}\right]^{-}+ H _{3} O ^{+}$