Haloalkanes And Haloarenes Question 10

Question 10 - 2024 (30 Jan Shift 2)

Given below are two statements:

Statement - I: High concentration of strong nucleophilic reagent with secondary alkyl halides which do not have bulky substituents will follow $S _N 2$ mechanism.

Statement - II: A secondary alkyl halide when treated with a large excess of ethanol follows $S _N 1$ mechanism. In the the light of the above statements, choose the most appropriate from the questions given below:

(1) Statement I is true but Statement II is false.

(2) Statement I is false but Statement II is true.

(3) Both statement I and Statement II are false.

(4) Both statement I and Statement II are true.

Show Answer

Answer (4)

Solution

Formula: Rate of Substitution nucleophilic Reaaction

Statement-I: Rate of $S _N \propto[R-X][Nu]$

$S _N 2$ reaction is favoured by high concentration of nucleophile $(Nu)$ \& less crowding in the substrate molecule.

Statement - II: Solvolysis follows $S _N 1$ path.

Both are correct Statements.