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Friday, 9 October

JEE Main 2020 · ChemistryMultiple choiceSingle correctMediumRecall

JEE Main 8 January 2020, Shift 1, Chemistry Q35

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

The number of bonds between sulphur and oxygen atoms in S2O82−\mathrm{S_2O_8^{2-}} and the number of bonds between sulphur and sulphur atoms in rhombic sulphur, respectively, are :
  1. (1)4 and 6
  2. (2)4 and 8
  3. (3)8 and 6
  4. (4)8 and 8Official answer

Official answer

Option 4

NTA final key (Jan 2020).

Chapter
The p-Block Elements
Topic
Group 15 & 16
Idea tested
Sulfur Oxoacids

Same idea in other shifts

Asked 2× in all
  1. 9 Apr 2024, Shift 2 · Q89Number of oxygen atoms present in chemical formula of fuming sulphuric acid is ________.EasyNumerical value

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.