Verified Solution • 2025–26 Session moderate

QJEEM24Ch20c6: JEE Main 2024 Chemistry - Class 12 JEEM24Ch20c6 Solution: Given below are two statements: Statement - I: High…

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 SN2\mathrm{S}_{\mathrm{N}}{ }^2 mechanism.

Statement - II: A secondary alkyl halide when treated with a large excess of ethanol follows SN1\mathrm{S}_{\mathrm{N}}{ }^1 mechanism.

In the light of the above statements, choose the most appropriate from the options given below:

Multiple Choice Options

  • A Both Statement I and Statement II are true.
  • B Statement I is true but Statement II is false.
  • C Both Statement I and Statement II are false.
  • D Statement I is false but Statement II is true.

Step-by-Step Verified Solution

Statement - I: Rate of SN2∝[R−X][Nu−]\mathrm{S}_{\mathrm{N}} 2 \propto[\mathrm{R}-\mathrm{X}]\left[\mathrm{Nu}^{-}\right]

SN2\mathrm{S}_{\mathrm{N}} 2 reaction is favoured by high concentration of nucleophile (Nu−)(\mathrm{Nu}^{-}) & less crowding in the substrate molecule.

Statement - II: Solvolysis follows SN1\mathrm{S}_{\mathrm{N}} 1 path.

Both are correct Statements.

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