The correct statement(s) for orthoboric acid is/are

Options

AIt behaves as a weak acid in water due to self ionization.
BAcidity of its aqueous solution increases upon addition of ethylene glycol.
CIt has a three dimensional structure due to hydrogen bonding.
DIt is a weak electrolyte in water.

Correct answer

B. Acidity of its aqueous solution increases upon addition of ethylene glycol.

Step-by-step solution

A] ${H}_{3}B{O}_{3}$ is a weak monobasic Lewis acid.
${H}_{3}B{O}_{3} + H - OH ⇌ B{\left(OH\right)}_{4}^{-} + {H}^{+} \ldots . . ( i )$
B] Equilibrium (i) is shifted in forward direction by the addition of syn-diols like ethylene glycol which forms a stable complex with $B{\left(OH\right)}_{4}^{-}$ .

The correct statement(s) for orthoboric acid is/are
C] It has a planar sheet like structure due to hydrogen bonding.
D] ${H}_{3}B{O}_{3}$ is a weak electrolyte in water.

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