Which of the following statement is/are correct?

Options

A. On adding excess of `AgNO_(3)` to 1 mole of each `PtCl_(4).4NH_(3)` and `[Ni(en)_(3)]Cl_(2)`, same weight of ppt `(AgCl)` is produced.
B. `Ma_(3)b_(3)` complexes do not show optical activity
C. Oxidation number of central metal in Zeise's salt is`+2`
D. `K_(4)[Fe(CN)_(6)]` & `K_(3)[Fe(CH)_(6)]` both have `sp^(3)d^(2)` hybridisation

Answer

A, B, C

Explanation

`[Pt(NH_(3))_(4)Cl_(2)]Cl_(2) [Ni(en)_(3)]Cl_(2)` both have same number of `Cl^(-)` in ionization sphere, Zeise's salt is `K[PtCl_(3)(C_(2)H_(4))],K_(4)[Fe(CN)_(6)]` & `K_(3)[Fe(CN)_(6)]` both have `d^(2)sp^(3)`.