Learn

Saturday, 31 October

JEE Main 2024 · ChemistryMultiple choiceAssertion–reasonEasyConceptual

JEE Main 30 January 2024, Shift 1, Chemistry Q74

Question 74 of 90 in this shift, Chemistry question 14 of 30, Section A.

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : CH2=CH−CH2−Cl\mathrm{CH_2=CH-CH_2-Cl} is an example of allyl halide. Reason (R) : Allyl halides are the compounds in which the halogen atom is attached to sp2sp^2 hybridised carbon atom. In the light of the above statements, choose the most appropriate answer from the options given below :
  1. (1)Both (A) and (R) are true and (R) is the correct explanation of (A)
  2. (2)Both (A) and (R) are true but (R) is not the correct explanation of (A)
  3. (3)(A) is true but (R) is falseOfficial answer
  4. (4)(A) is false but (R) is true

Official answer

Option 3

NTA final key.

Chapter
Haloalkanes and Haloarenes
Topic
SN1 and SN2 Mechanisms
Idea tested
Reactivity of Allylic and Benzylic Halides

Same idea in other shifts

Asked 2× in all
  1. 26 Aug 2021, Shift 1 · Q44Among the following compounds I-IV, which one forms a yellow precipitate on reacting sequentially with (i) NaOH (ii) dil. HNO3\mathrm{HNO_3}…MediumDiagram basedHas a figure

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.