Q. Identify incorrect statement:

3684 225 JEE MainJEE Main 2013The d-and f-Block Elements Report Error

A

$C u_{2} O$ is colourless

29%

B

Copper (I) compounds are colourless except when colour results from charge transfer

0%

C

Copper (I) compounds are diamagnetic

14%

D

$C u_{2} S$ is black

57%

Solution:

$C u_{2} O$ is red in colour.