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Consider the reversible reaction, ...

Consider the reversible reaction, `HCN(aq)⇌H^+ (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

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The correct Answer is:
A
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