Question

NCS- is a strong field or weak field ligand?

Answer 1

rather it is a strong ligand.

Explanation:

because it cause pairing of electron of central metal atom in ithe complex

Answer 2

This  group  is a strong field one .

Explanation:

Coordinate bond

It  is a bond in which sharing of electrons occur but not mutual sharing . In this the shared pair is donated by only one atom and the one that donates is donor and the other is accept or.

For example :  In this reaction NH₃:  + BF₃--{H₃N:->BF₃}

In this NH₃ is donor atom as it has lone pair and BF₃ is accept-or as it is electron deficient compound.

The branch of chemistry that deals with the study of coordination compounds are called as” coordinate chemistry “

It has central metal atom and electron donating groups .

Central metal atom : D block element with vacant d orbital and electron releasing groups  are group of atoms that are electron donors .

Electron donating groups  can  be strong or weak in nature