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Assertion: The dissociation of `PC1_(5)` decreases on increasing pressure. Reason: An increase in pressure favours the forward reaction.A. If both assertion and reason are true and the reason is the true explanation of the assertion.B. If both the assertion and reason are true but the reason is not the correst explanation of assertion.C. If the assertion is true but reason is false.D. If assertion is false but reason is true. |
Answer» Correct Answer - C `{:(PCl_(5),hArr,PCl_(3),+,Cl_(2)),(1,,0,,0),(1-alpha,,alpha,,alpha):}` `K_(p) = [(alpha^(2))/(1 - alpha)][(P)/(1 + alpha)]^(1)` An increase in pressure will decrease `alpha` , to have `K_(p)` constant and thus backward reaction occurs. |
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