The compound of copper which turns green on keeping in air i... | CHEMISTRY - SOME IMPORTANT COMPOUNDS OF TRANSITION ELEMENTS | SolveeIt | Solveeit

Today, August 18

Question

The compound of copper which turns green on keeping in air is.

A

Copper sulphate

B

Copper nitrate

C

Cupric chloride

D

Cuprous chloride

Answer

Cuprous chloride

Explanation

Solution

Cuprous chloride slowly oxidises to green basic cupric chloride.

$CuCl\overset{\quad\text{air}\quad}{\rightarrow}\underset{\text{green coloured}}{3CuO.CuCl_{2}.3H_{2}O}$