Question

Which of the following compound expected to be colourless.

• A. $ScO$
• B. $V_{2}O_{3}$
• C. $CuCN$
• D. $Cr_{2}(SO_{4})_{3}$

Answer 1

Answer: (C)

$CuCN$

Answer 2

$CuCN$;

as all the electrons are paired. It is expected to be colourless.