Question

Which of the following is a high spin complex ion?

Solution

Correct option is

[Co(NH3)6]2+

Co (II) – 3d7 : Two vacant 3d orbitals can not be made available by pairing up electrons.  

SIMILAR QUESTIONS

Q1

 

Which of the following ions are expected to be paramagnetic to the same extent? 

I. [FeF6]3–                              II. [MnCl4]2–

III. [NiCl4]2–     

Q2

Which of the following is an outer orbital complex?

Q3

The most stable ions is

Q4

Which of the following has the largest number of isomers?

Q5

The number of geometric isomer of the complex Cr(NH3)3Cl3 is

Q6

A coordination complex having which one of the following descriptions would be paramagnetic to the maximum extent?

Q7

 

Consider the complex : K3[Co(C2O4)2Cl2

The coordination number, the oxidation number of Co and the number of unpaired electrons on the metal are respectively

Q8

Pick out the paramagnetic species of the following

Q9

 

Arrange the following in the increasing order of paramagnetism : 

I: [Fe(H2O)6]Cl3

II: K4[Fe(CN)6

III: K3[Fe(CN)6

IV: [Fe(H2O)6]SO4.H2O

Q10

Which of the following is a spin paired complex ion?