The complex that shows Facial - Meridional isomerism is (1) [Co(NH3)3Cl3] (2) [Co(NH3)4Cl2]^+

Question

The complex that shows Facial - Meridional isomerism is

(1) \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{3} \mathrm{Cl}_{3}\right]\)

(2) \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{4} \mathrm{Cl}_{2}\right]^{+}\)

(3) \(\left[\mathrm{Co}(\mathrm{en})_{3}\right]^{3+}\)

(4) \(\left[\mathrm{Co}(\mathrm{en})_{2} \mathrm{Cl}_{2}\right]^{+}\)

Answer 1

Correct option is : (1) \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{3} \mathrm{Cl}_{3}\right]\) 

\(\mathrm{Ma}_{3} \mathrm{b}_{3}\) type complexes show Facial - Meridional isomerism

(i) \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{3} \mathrm{Cl}_{3}\right] \Rightarrow \mathrm{Ma}_{3} \mathrm{b}_{3}\)

(ii) \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{4} \mathrm{Cl}_{2}\right]^{+} \Rightarrow \mathrm{Ma}_{4} \mathrm{b}_{2}\)

(iii) \(\left[\mathrm{Co}(\mathrm{en})_{3}\right]^{3+} \Rightarrow \mathrm{M}(\mathrm{AA})_{3}\)

(iv) \(\left[\mathrm{Co}(\mathrm{en})_{2} \mathrm{Cl}_{2}\right]^{+} \Rightarrow \mathrm{M}(\mathrm{AA})_{2} \mathrm{b}_{2}\)

\(\mathrm{a}, \mathrm{b},=\mathrm{NH}_{3}, \mathrm{Cl}^{-}\)

\(\mathrm{AA}=\mathrm{en}\)