Question

CH3-CL+KI gives CH3-I +NAI.
the reaction will be fastest in which solvent
​

Answer 1

Substitution reaction

Explanation:

• The given reaction is an example of a substitution reaction (SN2 reaction)
• CH3-CL+KI → CH3-I +NAI
• The rate of an SN2 reaction is influenced by the solvent (protic and aprotic solvent) in which the reaction takes place.
• In polar aprotic solvents, the reaction rate is faster as they help in increasing the reactivity of nucleophile.
• Thus the given reaction would be fastest in a polar aprotic solvent like acetone.