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Saturday, 31 October

JEE Main 2024 · ChemistryMultiple choiceTwo statementsMediumConceptual

JEE Main 30 January 2024, Shift 2, Chemistry Q75

Question 75 of 90 in this shift, Chemistry question 15 of 30, Section A.

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_N}2 mechanism. Statement - II: A secondary alkyl halide when treated with a large excess of ethanol follows SN1\mathrm{S_N}1 mechanism. In the light of the above statements, choose the most appropriate from the options given below:
  1. (1)Both Statement I and Statement II are true.Official answer
  2. (2)Both Statement I and Statement II are false.
  3. (3)Statement I is true but Statement II is false.
  4. (4)Statement I is false but Statement II is true.

Official answer

Option 1

NTA final key.

Chapter
Haloalkanes and Haloarenes
Topic
SN1 and SN2 Mechanisms
Idea tested
Solvent Effects on Substitution

Same idea in other shifts

Asked 3× in all
  1. 2 Apr 2026, Shift 2 · Q65Correct statements regarding alkyl halides (R - X) among the following are: A. Alcohol being less polar solvent as compared to water,…MediumSingle correct
  2. 13 Apr 2023, Shift 1 · Q752-Methyl propyl bromide reacts with C2H5O−\mathrm{C_2H_5O^-} and gives 'A' whereas on reaction with C2H5OH\mathrm{C_2H_5OH} it gives 'B'. The…MediumSingle correct

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.