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Consider the reaction HCN((aq))hArrH((aq...

Consider the reaction `HCN_((aq))hArrH_((aq))^(+) + CN_((aq))^(-)` . At equilibrium, the addition of `CN_((aq))^(-)` would

A

Reduce `HCN_((aq))` concentration

B

Decrease the `H_((aq))^(+)` ion concentration

C

Increase the equilibrium constant

D

Decrease the equilibrium constant

Text Solution

Verified by Experts

The correct Answer is:
B
At equilibrium, the addition of `(CN)^(-)` would decrease the `(H^(+))` ion concentration to produce more and more HCN to nullify the increase of `CN^(-)aq `.
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