Select correct statement(s) regarding given complexes:

Options

A. `[Fe(CO)_(5)]`, the orbitals used for hybridisation in Fe atom are s, `p_(x),p_(y),p_(z),d_(z^(2))` and it is high spin complex
B. `[Pt(NH_(3))_(2)Cl_(2)]`, the orbtials used for hybridization on Pt atom are s,`p_(x),p_(y),d_(x^(2)-y^(2)) ` and it is low spin complex
C. `[Cr(H_(2)O)_(6)]^(3+)`, the orbitals used for hybridization in Cr atom are s,`p_(x),p_(y),p_(z),p_(x^(2)),d_(x^(2)-y^(2))` and it is high spin complex
D. `Ni(CO)_(4)`, the orbitals used of rhybridization in Ni atom are s,`p_(x),p_(y),p_(z)`, and it is low spi complex

Answer

B, D