Question

The observed magnetic moment of the complex [Mn(NCS)₆]^x– is 6.06 BM. The numerical value of x is _____ :

Answer 1

Correct answer is 4

[Mn(NCS)₆]^x- 

Number of unpaired electron = 5 

So, Mn must be in +2 oxidation state (Mn⁺²) 

⇒ 2 + (–6) = –x 

⇒ –4 = –x 

⇒ x = 4