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  4. Find difference in number of moles of H2O required during partial and complete hydrolysis of 1 mole of PCl5 .

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Q. Find difference in number of moles of $H_{2}O$ required during partial and complete hydrolysis of $1\,mole$ of $PCl_{5}$ .

NTA AbhyasNTA Abhyas 2022

Solution:

$PCl _5+ H _2 O \xrightarrow{\text { Partial hydolysis }}POCl _3+2 HCl$
$PCl _5+4 H _2 O \xrightarrow{\text { complete hydrolysis }} H _3 PO _4+5 HCl$
Difference in no. of moles of water required during partial hydrolysis and complete hydrolysis is $4-1=3$.