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 $\mathrm{S}_{\mathrm{N}} 2$ mechanism.
Statement - II: A secondary alkyl halide when treated with a large excess of ethanol follows $\mathrm{S}_{\mathrm{N}} 1$ 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 $\mathrm{S}_{\mathrm{N}} \propto[\mathrm{R}-\mathrm{X}][\mathrm{Nu}]$
$\mathrm{S}_{\mathrm{N}} 2$ reaction is favoured by high concentration of nucleophile $(\mathrm{Nu})$ & less crowding in the substrate molecule.
Statement - II: Solvolysis follows $\mathrm{S}_{\mathrm{N}} 1$ path.
Both are correct Statements.
