A) \[Cu\left( CN \right)\]
B) \[Cu{{\left( CN \right)}_{2}}\]
C) \[{{K}_{3}}[Cu{{\left( CN \right)}_{4}}]\]
D) \[{{K}_{4}}[Cu{{(CN)}_{6}}]\]
Correct Answer: C
Solution :
[c] \[2CuS{{O}_{4}}+10KCN\xrightarrow{{}}\] \[2{{K}_{3}}[Cu{{(CN)}_{4}}]+2{{K}_{2}}S{{O}_{4}}+{{(CN)}_{2}}\]
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