First slide

Orthoboric acid

Question

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

Easy

A

It behaves as a weak acid due to self ionisation
B

Acidity of its aqueous solution increases upon addition of ethylene glycol
C

It has planar structure due to hydrogen bonding
D

It is a weak electrolyte in water

Solution

$B {(OH)}_{3} + NaOH \overset{}{⇌} B {(OH)}_{4}^{-} + {Na}^{+} {BO}_{2}^{-} + 2 H_{2} O$
The reversibility breaks due to the formation of complex.

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