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Friday, 9 October

JEE Main 2020 · ChemistryMultiple choiceMatch the listEasyRecall

JEE Main 6 September 2020, Shift 2, Chemistry Q35

Question 35 of 75 in this shift, Chemistry question 10 of 25.

Match the following compounds (Column-I) with their uses (Column-II) : Column - I / Column - II (I) Ca(OH)2\mathrm{Ca(OH)_2} (A) casts of statues (II) NaCl (B) white wash (III) CaSO4⋅12H2O\mathrm{CaSO_4\cdot\frac{1}{2}H_2O} (C) antacid (IV) CaCO3\mathrm{CaCO_3} (D) washing soda preparation
  1. (1)(I)-(D), (II)-(A), (III)-(C), (IV)-(B)
  2. (2)(I)-(C), (II)-(D), (III)-(B), (IV)-(A)
  3. (3)(I)-(B), (II)-(D), (III)-(A), (IV)-(C)Official answer
  4. (4)(I)-(B), (II)-(C), (III)-(D), (IV)-(A)

Official answer

Option 3

NTA final key (Sep 2020).

Chapter
The s-Block Elements
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 42 of the 174 JEE Main shifts held from 2017 to 2026.