Which of the following complexes exists in facial and meridional forms?

Options

A. `[Co("dien)_(3)]^(3+)`
B. `[Co(NH_(3))_(3)Cl_(3)]`
C. `[Co("en")_(3)]^(3+)`
D. `[Co("gly")_(3)]`

Answer

A, B, D

Explanation

`[M("AA"'A)_(2)], [Ma_(3)b_(3)]` and `[M(AB)_(3)]` can show fac and mer forms.