Question

Which among the following is a set of nucleophiles?

Options

• H⁺, NH₃, Cl⁻

• BF₃, H₂O, NH₃

• AlCl₃, BF₃, NH₃

• CN⁻, H₂O, R–OH

Answer 1

CN⁻, H₂O, R–OH

Explanation:

All molecules or ions with free pair of electrons or at least one n-bond can act as nucleophiles.

Among given species CN⁻, \[\ce{H2\overset{\bullet\bullet}{\underset{\bullet\bullet}{O}}}\] and \[\ce{R-\overset{\bullet\bullet}{\underset{\bullet\bullet}{O}}H}\] are nucleophiles.