The ligand called `pi` acid is

Out of following which ligand is a pi acid ligand ?

Out of following which ligand is a pi acid ligand ?

The ligand capable of coordinating in two or more ways with the central metal ion are called …………..ligands.

Which of the following ligands is calles pi - acceptors? {:(CO,CN^(-),NO^(+),),((I),(II),(III),):}

If Delta_(0) is the crystal field stabilisation energy of a ligand and P is the energy required for electron pairing in an orbital, then ligand is called weak ligand if

If Delta_(0) is the crystal field stabilisation energy of a ligand and P is the energy required for electron pairing in an orbital, then ligand is called weak ligand if