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Saturday, 10 October

JEE Main 2026 · PhysicsMultiple choiceSingle correctMediumMulti-step

JEE Main 2 April 2026, Shift 2, Physics Q34

Question 34 of 75 in this shift, Physics question 9 of 25, Section A.

A mixture of carbon dioxide and oxygen has volume 8310 cm3^3, temperature 300 K, pressure 100 kPa and mass 13.2 g. The number of moles of carbon dioxide and oxygen gases in the mixture respectively are (Assume both carbon dioxide and oxygen gases behave like ideal gases) [R = 8.31 J/(mol.K)]
  1. (1)0.150.15 and 0.180.18
  2. (2)0.250.25 and 0.080.08
  3. (3)0.210.21 and 0.120.12Official answer
  4. (4)0.130.13 and 0.200.20

Official answer

Option 3

NTA final key.

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.