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Friday, 9 October

JEE Main 2017 · ChemistryMultiple choiceSingle correctMediumMulti-step

JEE Main 2 April 2017 (offline), Chemistry Q58

Question 58 of 90 in this shift, Chemistry question 28 of 30.

3-Methyl-pent-2-ene on reaction with HBr in presence of peroxide forms an addition product. The number of possible stereoisomers for the product is :
  1. (1)Two
  2. (2)FourOfficial answer
  3. (3)Six
  4. (4)Zero

Official answer

Option 2

CBSE answer key (25/04/2017, used for result).

Chapter
Hydrocarbons
Topic
Alkenes and Alkynes
Idea tested
Peroxide Effect (Anti-Markovnikov)

Same idea in other shifts

Asked 2× in all
  1. 6 Sep 2020, Shift 2 · Q30The increasing order of the boiling points of the major products A, B and C of the following reactions will be : (a) [figure: but-1-ene,…MediumSingle correctHas a figure

Question text from the official JEE Main paper published by NTA (CBSE ran the 2017 exam); answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 42 of the 174 JEE Main shifts held from 2017 to 2026.