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Saturday, 31 October

JEE Main 2023 · ChemistryMultiple choiceSingle correctMediumConceptual

JEE Main 10 April 2023, Shift 1, Chemistry Q63

Question 63 of 90 in this shift, Chemistry question 3 of 30, Section A.

The enthalpy change for the adsorption process and micelle formation respectively are
  1. (1)ΔHads<0\Delta H_{ads} < 0 and ΔHmic<0\Delta H_{mic} < 0
  2. (2)ΔHads>0\Delta H_{ads} > 0 and ΔHmic>0\Delta H_{mic} > 0
  3. (3)ΔHads>0\Delta H_{ads} > 0 and ΔHmic<0\Delta H_{mic} < 0
  4. (4)ΔHads<0\Delta H_{ads} < 0 and ΔHmic>0\Delta H_{mic} > 0Official answer

Official answer

Option 4

NTA final key.

Same idea in other shifts

Asked 2× in all
  1. 26 Aug 2021, Shift 1 · Q34Which one of the following is correct for the adsorption of a gas at a given temperature on a solid surface ?EasySingle correct

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.