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Q.
Hydrolysis of $ PCl_{5} $ gives
Chhattisgarh PMTChhattisgarh PMT 2009
Solution:
$PCl _{5}$, on hydrolysis, with insufficient quantity of water, gives $POCl _{3}$ while with excess of water gives phosphoric acid, $\left( H _{3} PO _{4}\right) $.
$PCl _{5}+4 H _{2} O \xrightarrow{\text { Excess of water }} H _{3} PO _{4}+5 HCl$