JEE Main 2025 — States of Matter Question with Solution
JEE Main 2025 (7 Apr Shift 1)
Question
At the sea level, the dry air mass percentage composition is given as nitrogen gas : 70.0, oxygen gas : 27.0 and argon gas : 3.0. If total pressure is 1.15 atm , then calculate the ratio of followings respectively :
(i) partial pressure of nitrogen gas to partial pressure of oxygen gas
(ii) partial pressure of oxygen gas to partial pressure of argon gas
(Given : Molar mass of and Ar are 14, 16, and respectively)
(i) partial pressure of nitrogen gas to partial pressure of oxygen gas
(ii) partial pressure of oxygen gas to partial pressure of argon gas
(Given : Molar mass of and Ar are 14, 16, and respectively)
Choose an option
Show full solutionCorrect option: D
Correct answer
D
Step-by-step explanation
{using Dalton's law of partial pressure}
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This is a previous-year question from JEE Main 2025, covering the States of Matter chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.