Question

Aqueous solution of PBr${}_3$ conducts electricity due to the presence of:

• A. $HOBr$
• B. $HBr$
• C. $H_{3}P{O}_4$
• D. $H_{2}O$

Answer 1

The correct option is C $H_{3}P{O}_4$

$PB{r}_3+3H_{2}O\to H_{3}P{O}_4+HBr$
HBr is covalent $H_{3}P{O}_4$ is ionic. Solution conducts electricity due to ions.
So aqueous solution of $PB{r}_3$ conducts electricity due to presence of $H_{3}P{O}_4$.