Assertion : `NF_3` is a weaker ligand than `N(Ch_3)_3`
Reason : `NF_3` ionizes to give `F^-` ions in aqueous solution.

Options

A. If both `(A)` and ` (R )` are correct and `(R )` is the correct explanation of `(A ) ` .
B. If both `(A)` and ` (R )` are correct and `(R )` is the correct explanation of `(A ) ` .
C. If`(A)` is correct, but `( R )` is incorrect .
D. Both `(A)` and `(R ) ` are incorrect .

Answer

C

Explanation

Correct `(R )` F is highly `EN` it attracts the electrons of `N` towards itself and hence are not easily available on `N` making it a weaker ligand or donor. That is why `NF_(3)` does not ionises to give `F^(Θ)` ions is aqueous solution .