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At 200^(@)C PCl(5) dissociates as follow...

At `200^(@)C PCl_(5)` dissociates as follows :
`PCl_(5)(g0hArrPCl_(3)(g)+Cl_(2)(g)`
It was found that the equilibrium vapours are 62 times as heavy as hydreogen .The degree of dissociation of `PCl_(5)` at `200^(@)C` is nearly :

A

`10%`

B

`42%`

C

`50%`

D

`68%`

Text Solution

Verified by Experts

The correct Answer is:
d
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