Equilibrium Question 683
Question: Consider the reaction $ HC{N_{(aq)}} $ ⇌ $ H_{(aq)}^{+}+CN_{(aq)}^{-} $ . At equilibrium, the addition of $ CN_{(aq)}^{-} $ would [NCERT 1979]
Options:
A) Reduce $ HC{N_{(aq)}} $ concentration
B) Decrease the $ H_{(aq)}^{+} $ ion concentration
C) Increase the equilibrium constant
D) Decrease the equilibrium constant
Show Answer
Answer:
Correct Answer: B
Solution:
At equilibrium, the addition of $ {{(CN)}^{-}} $ would decrease the $ ({H^{+}}) $ ion concentration to produce more and more HCN to nullified the increase of $ C{N^{-}}_{aq} $ .
