Select correct statement(s) regarding given complexes:
a. [Fe(CO)5] , the orbitals used for hybridization in Fe atom are s,px,py,pz,dz2 and it is high spin complex
b. [Pt(NH3)2Cl2] , the orbitals used for hybridization on Pt atom are s,px,py,dx2−y2 and it is low spin complex
c. [Cr(H2O)6]3+ , the orbitals used for hybridization in Cr atom are s,px,py,pz,dz2,dx2−y2 and it is high spin complex
d. Ni(CO)4 , the orbitals used for hybridization in Ni atom are s,px,py,pz , and it is low spin complex