Question

Copper sulfate solution reacts with KCN to give:

• A. \( \text{Cu(CN)}_2 \)
• B. \( \text{CuCN} \)
• C. \( \text{K}_2 \text{Cu(CN)}_4 \)
• D. \( \text{K}_3 \text{Cu(CN)}_4 \)

Hint:

Copper(I) cyanide complexes are common in reactions involving cyanides and metal salts.

Answer 1

The Correct Option is C

When copper sulfate reacts with potassium cyanide, a coordination complex \( \text{K}_2 \text{Cu(CN)}_4 \) is formed.
Final Answer: \[ \boxed{\text{K}_2 \text{Cu(CN)}_4} \]