question_answer

The magnetic moment of\[[Co{{(N{{H}_{3}})}_{6}}]C{{l}_{3}}\]is

A)  1.73                      

B)  2.83

C)  6.6                        

D)  zero

Correct Answer: D

Solution :

                In\[{{[Co{{(N{{H}_{3}})}_{6}}]}^{3+}}\]the oxidation state of\[Co\]is +3. \[{{[Co{{(N{{H}_{3}})}_{6}}]}^{3+}}\]does not contain unpaired electron hence, its magnetic moment is zero.