Which of the following species is not expected to be a ligand? (a) NO (b) NH4 (c) NH2CH2CH2NH2 (d) Both (a) and (b)

Which of the following species is not expected to be a ligand?

(a) NO

(b) NH4

(d) Both (a) and (b)

Solutions

Expert Solution

Answer : (b) NH4

Explanation :

In ammonia, Nitrogen atom has one lone pair of electrons. Nitrogen donates this lone pair of electrons to proton to form ammonium ion. So NH4+ ion does not have a lone pair of electrons which it can donate to central metal ion. Hence it cannot behave as a ligand.

While NO and ethylene diammine are well known ligands. They can donate there electrons to central metal atom.

b) NH4

Rakesh answered 1 year ago

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