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Saturday, 31 October

JEE Main 2021 · ChemistryMultiple choiceSingle correctMediumConceptual

JEE Main 27 August 2021, Shift 1, Chemistry Q47

Question 47 of 90 in this shift, Chemistry question 17 of 30, Section A.

Which of the following is not a correct statement for primary aliphatic amines ?
  1. (1)Primary amines can be prepared by the Gabriel phthalimide synthesis.
  2. (2)Primary amines are less basic than the secondary amines.
  3. (3)The intermolecular association in primary amines is less than the intermolecular association in secondary amines.Official answer
  4. (4)Primary amines on treating with nitrous acid solution form corresponding alcohols except methyl amine.

Official answer

Option 3

NTA final key.

Chapter
Amines
Topic
Amines
Idea tested
Aliphatic Amine Basicity

Same idea in other shifts

Asked 2× in all
  1. 29 Jul 2022, Shift 1 · Q72Which among the following is the strongest Bronsted base ?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.