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  4. Among the following, the group of molecules that undergoes rapid hydrolysis is

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Q. Among the following, the group of molecules that undergoes rapid hydrolysis is

NTA AbhyasNTA Abhyas 2020The s-Block Elements

Solution:

$BCl_{3},SiCl_{4}$ and $PCl_{5}$ get radily hydrolysed to give orthoboric, orthosilicic and phosphoric acid respectively.

$BCl_{3}+3H_{2}O \rightarrow H_{3}BO_{3}+3HCl$

$SiCl_{4}+4H_{2}O \rightarrow H_{4}SiO_{4}+4HCl$

$PCl_{5}+H_{2}O \rightarrow POCl_{3}+2HCl\overset{H_{2} O \left(e x c e s s\right)}{ \rightarrow }H_{3}PO_{4}+HCl$