Question

Which of the following is FALSE regarding S_N2 reaction mechanism?

Options

• Strong nucleophile is favourable.

• Polar solvent is favourable.

• Simultaneous bond making and bond breaking occurs.

• The rate of reaction decreases as the alkyl halide changes from 1° to 2° to 3°.

Answer 1

Polar solvent is favourable.

Explanation:

Aprotic solvents or solvents of low polarity will favour S_N2 mechanism.