Question

Identify the statement which is not correct regarding $CuSO_4$

• A. It reacts with $KI$ to give iodine
• B. It reacts with $KCl$ to give $Cu_2Cl_2$
• C. It reacts with $NaOH$ and glucose to give $Cu_2O$
• D. It gives $CuO$ on strong heating in air

Answer 1

Answer: (B)

$CuSO _{4}$ reacts with $KI$ to give white precipitate of $Cu _{2} I _{2}$ and to evolve $I _{2} .$ But it does not react with $KCl$ in the same way.