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Saturday, 31 October

JEE Main 2021 · ChemistryMultiple choiceAssertion–reasonEasyConceptual

JEE Main 31 August 2021, Shift 1, Chemistry Q42

Question 42 of 90 in this shift, Chemistry question 12 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) : A simple distillation can be used to separate a mixture of propanol and propanone. Reason (R) : Two liquids with a difference of more than 20∘C20^\circ\mathrm{C} in their boiling points can be separated by simple distillations. In the light of the above statements, choose the most appropriate answer from the options given below :
  1. (1)Both (A) and (R) are correct and (R) is the correct explanation of (A).Official answer
  2. (2)Both (A) and (R) are correct but (R) is not the correct explanation of (A).
  3. (3)(A) is true but (R) is false.
  4. (4)(A) is false but (R) is true.

Official answer

Option 1

NTA final key.

Chapter
Organic Chemistry: Some Basic Principles and Techniques
Topic
No close match in our taxonomy
Idea tested
No close match in our taxonomy

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.