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Saturday, 31 October

JEE Main 2024 · ChemistryMultiple choiceSingle correctEasyRecall

JEE Main 5 April 2024, Shift 2, Chemistry Q72

Question 72 of 90 in this shift, Chemistry question 12 of 30, Section A.

While preparing crystals of Mohr's salt, dil H2SO4\mathrm{H_2SO_4} is added to a mixture of ferrous sulphate and ammonium sulphate, before dissolving this mixture in water, dil H2SO4\mathrm{H_2SO_4} is added here to :
  1. (1)prevent the hydrolysis of ammonium sulphate
  2. (2)make the medium strongly acidic
  3. (3)prevent the hydrolysis of ferrous sulphateOfficial answer
  4. (4)increase the rate of formation of crystals

Official answer

Option 3

NTA final key.

Chapter
Equilibrium
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.