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Friday, 9 October

JEE Main 2025 · ChemistryMultiple choiceDiagram basedHardData or graph

JEE Main 2 April 2025, Shift 1, Chemistry Q54

Question 54 of 75 in this shift, Chemistry question 4 of 25, Section A.

Which of the following graph correctly represents the plots of KH\mathrm{K_H} at 1 bar for gases in water versus temperature?

The figure, in words

All four options are graphs of K_H/GPa (y-axis) versus t/°C (x-axis) for different gases.
  1. (1)[figure: graph of K_H/GPa vs t/°C, three curves rising to a maximum then decaying toward a common low value; peak heights in order O2 (highest), N2, He (lowest)]
  2. (2)[figure: graph of K_H/GPa vs t/°C, three curves rising to a maximum then decaying toward a common low value; peak heights in order He (highest), N2, CH4 (lowest)]Official answer
  3. (3)[figure: graph of K_H/GPa vs t/°C, three straight lines through origin; O2 steepest, then N2, He least steep]
  4. (4)[figure: graph of K_H/GPa vs t/°C, three U-shaped curves (He top, N2, O2 bottom at low t) dipping then rising steeply and meeting at a common point at high t]

Official answer

Option 2

NTA final key.

Chapter
Solutions
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. This question needs a figure we do not reproduce; it is described in words above. Lumi analyses 42 of the 174 JEE Main shifts held from 2017 to 2026.