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

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Both statements are true and statement 2 is the correct explanation of statement 1.

Both statements are true but statement 2 is not the correct explanation of statement 1.

Statement 1 is true whereas statement 2 is false.

Statement 1 is false whereas statement 2 is true.

answer is C.

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Detailed Solution

Orthoboric acid or boric acid, $H_{3} {BO}_{3}$ is soluble in water and behaves as a weak monobasic acid. It is considered as a monobasic because rather than donate protons, it accepts ${OH}^{-}$ from water. Therefore, it acts as a Lewis acid.

$H_{3} {BO}_{3} + 2 H_{2} O ⇌ H_{3} O^{+} + {[B (OH)_{4}]}^{-}$

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