Q. Which of the following compound is para-magnetic ?

1358 236 The d-and f-Block Elements Report Error

A

Tetracyanonickelate (II) ion

20%

B

Tetraammine zinc (II) ion

10%

C

Hexaammine chromium (III) ion

59%

D

Diammine silver (I) ion.Oxidation States

12%

Solution:

It has no unpaired electron.