Assertion: NF3 is a weaker ligand than N(CH3)3. Reason: NF3 ionizes to give F- ions in aqueous solution.

Question

Assertion: NF3 is a weaker ligand than N(CH3)3. Reason: NF3 ionizes to give F- ions in aqueous solution. (A) If both assertion and reason are true and reason is the correct explanation of assertion (B) If both assertion and reason are true but reason is not the correct explanation of assertion (C) If assertion is true but reason is false (D) If both assertion and reason are false

Tardigrade Admin · Accepted Answer

Due to high electronegativity and electron withdrawing nature of

F

-atom, the lone pair of

N

-atom in

N F_{3}

molecule is not easily available for donation. Whereas in

N (C H_{3})_{3}, -

C H_{3}

group is an electron releasing group, thus lone pair of N-atom in

N (C H_{3})_{3}

molecule can be ligated easily. Except, nitrogen fluoride, all other trihalides hydrolyse in water.

NC l_{3} + 3 H_{2} O ⟶ N H_{3} + 3 H OCl

Q. Assertion : NF3​ is a weaker ligand than N(CH3​)3​. Reason : NF3​ ionizes to give F− ions in aqueous solution.

If both assertion and reason are true and reason is the correct explanation of assertion

If both assertion and reason are true but reason is not the correct explanation of assertion

If assertion is true but reason is false

If both assertion and reason are false

Q. Assertion : $N F_{3}$ is a weaker ligand than $N (C H_{3})_{3}$ .
Reason : $N F_{3}$ ionizes to give $F^{-}$ ions in aqueous solution.