Question

In solvents like DMSO, acetonitrile, F^- ion of dissolved NaF is more reactive than in methyl alcohol because

(a) CH₃OH is more polar than DMSO and CH₃CN

(b) CH₃OH is less polar than DMSO and CH₃CN

(c) unsolvated Its ion in DMSO or CH₃CN acts more efficiently as nucleophile

(d) -OH group is a better leaving group than F^- ion.

Answer 1

Correct option (c) unsolvated Its ion in DMSO or CH₃CN acts more efficiently as nucleophile

Explanation:

In methyl alcohol, F^- ion is solvated but in DMSO or CH₃CN (aprotic solvent) F^- ion is not solvated. Unsolvated F^- ion acts more efficiently as a nucleophile.