The observed magnetic moment of the complex [ Mn ( NCS ) 6 ) ] x - is 6 . 06 BM . The numerical value of x is

Step-by-step solution

The complex [ Mn ( NCS ) 6 ) ] x - has a magnetic moment of   6 . 06   BM . This indicates that the complex has unpaired electrons, which contribute to its magnetic moment. Number of unpaired electrons = 5 ( Mn 2 +   :   3 d 5 ) . So Mn must be in + 2 oxidation state Mn 2 + . ⇒   2   +   ( – 6 )   =   – x   ⇒   – 4   =   – x   ⇒   x   =   4 The numerical value of x is 4 , so the complex is