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JEE Main Chemistry question

ChemistryStates of Matter (Gaseous & Liquid State)JEE Main

and ideal gases. The molecular weights of and are in the ratio of 1:4. The pressure of a gas mixture containing equal weight of and is atm. What is the partial pressure (in atm) of in the mixture?

Answer: (A)

Solution

For equal mass of each gas, moles of and moles of (since ). Mole fraction of

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Question ID VK-143000