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Two moles of PCl(5) were introduced in ...

Two moles of `PCl_(5)` were introduced in a 2L, flask and heated at 600 K to attain the equilibrium, `PCl_(5)` was found to be 40% dissociated into `PCl_(3)` and `Cl_(2).K_(c )` for the reaction is :

A

`2.67xx10^(4)`

B

`2.67xx10^(-1)`

C

`2.67xx10^(-3)`

D

`2.67xx10^(-2)`

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The correct Answer is:
B
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