Question

Phosphorus trichloride, $PC{l}_3$, undergoes hydrolysis to produce an oxoacid. The formula of oxoacid is :

• A. $HP{O}_3$
• B. $H_{3}P{O}_3$
• C. $H_{3}P{O}_4$
• D. $H_{3}P{O}_2$

Answer 1

Answer: (B)

$H_{3}P{O}_3$

$PC{l}_3$ on hydrolysis gives $HCl$ and $H_{3}P{O}_3$.

The reaction is:

$PC{l}_3+3H_{2}O\to H_{3}P{O}_3+3HCl$