Which of the following statements is/are false ?

Options

A. In `[PtCl_(2)(NH_(3))_(4)]^(2+)` complex ion, the cis-form is optically active, while trans-form is optically inactive
B. In `[Fe(C_(2)O_(4))_(3)]^(3-)`, geometrical isomerism does not exist while optical isomerism exists
C. `[Mabcd]^(n+-)` square planar complexes exhibit both optical as well as geometrical isomerism
D. In `[Mabcd]^(n+-)` tetrahedral complexes, optical isomerism cannot be observed

Answer

A, C, D

Explanation

(a) cis and trans form are optically inactive.