Chemistry · 2022
JEE Main · 24 June 2022, Shift 2 · Q81
At 300 K, a sample of 3.0 g of gas A occupies the same volume as 0.2 g of hydrogen at 200 K at the same pressure. The molar mass of gas A is \ \ \ \…
At $\displaystyle 300$ K , a sample of $\displaystyle 3.0$ g of gas A occupies the same volume as $\displaystyle 0.2$ g of hydrogen at $\displaystyle 200$ K at the same pressure. The molar mass of gas A is \_\_\_\_ g $\displaystyle \mathrm{mol}^{-1}$. (nearest integer) Assume that the behaviour of gases as ideal.
(Given: The molar mass of hydrogen $\displaystyle \left(\mathrm{H}_2\right)$ gas is $\displaystyle 2.0 \mathrm{~g} \mathrm{~mol}^{-1}$.)
Official answer
45
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JEE Main 2022 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.