Question

[Fe(H2O)5NO2+] is brown-ring complex in NO3. In this complex:

Solution

Correct option is

All are correct statements

 

 

       

        3d6                    3d7

Four unpaired electrons    three unpaired electrons

 

 

SIMILAR QUESTIONS

Q1

0.001 mol of cobalt complex having molecular formula represented by Co(NH3)5(NO3)(SO4) was passed through a cation exchange (RSO3H) and the acid coming out of it was titrated with 0.1 M NaOH solution. For complete neutralization of acid coming out of cation exchanger the volume of NaOH required was 20.00 ml. From the above data we can say that the complex can be represented as 

Q2

 

Three different solutions were prepared by dissolving same amounts of the following complexes I, II, III in water. The freezing points of these solutions were then determined. The correct orders of freezing points will be :

I. [Co(NH3)3(NO2)3

II. [Co(NH3)5(NO2)]2+ [Co(NH3)2(NO2)4]2   

III. [Co(NH3)4(NO2)2][Co(NH3)2(NO2)4

[Given : Kf(H2O) = 1.86oC/m]

Q3

The correct order of ligands in  the trans-directing series is

Q4

Effective atomic number (EAN) of Fe in brown ring complex [Fe(H2O)5NO]2+

Q5

 

Increasing value of magnetic moments of :

  I : Ni(CO)4,                               II : [Ti(H2O)6]2+,    

III : [V(H2O)6]2+,                       IV : [Fe(H2O)6]2+  is:

Q6

If FeCl3 . 6H2O would exist as a complex, one mol of it in aqueous solution on reaction with excess of AgNO3 forms: