Which of the following is copper(I) compound? | CHEMISTRY - DEFINITION OF SOME IMPORTANT TERMS PERTAINING TO COORDINATION COMPOUNDS | SolveeIt | Solveeit

Today, August 18

Question

Which of the following is copper(I) compound?

A

[Cu(H2O)4]2+

B

[Cu(CN)4]3–

C

[Cu(NH3)4]2+

D

All of these

Answer

$Cu(CN)4$ 3–

Explanation

Solution

Let x be the oxidation state of copper in [Cu(CN)4]3–. So, x + 4(–1) = – 3 or x = 1. In (1) and (3) the oxidation state of copper is +2.