1
JEE Main 2023 (Online) 10th April Morning Shift
Numerical
+4
-1 At constant temperature, a gas is at a pressure of 940.3 mm Hg. The pressure at which its volume decreases by 40% is __________ mm Hg. (Nearest integer)

2
JEE Main 2023 (Online) 8th April Morning Shift
Numerical
+4
-1  Three bulbs are filled with $$\mathrm{CH}_{4}, \mathrm{CO}_{2}$$ and $$\mathrm{Ne}$$ as shown in the picture. The bulbs are connected through pipes of zero volume. When the stopcocks are opened and the temperature is kept constant throughout, the pressure of the system is found to be ___________ atm. (Nearest integer)

3
JEE Main 2023 (Online) 31st January Morning Shift
Numerical
+4
-1 The total pressure of a mixture of non-reacting gases $$\mathrm{X}(0.6 \mathrm{~g})$$ and $$\mathrm{Y}(0.45 \mathrm{~g})$$ in a vessel is $$740 \mathrm{~mm}$$ of $$\mathrm{Hg}$$.

The partial pressure of the gas $$\mathrm{X}$$ is _______ $$\mathrm{mm}$$ of $$\mathrm{Hg}$$. (Nearest Integer)

(Given : molar mass $$\mathrm{X}=20$$ and $$\mathrm{Y}=45 \mathrm{~g} \mathrm{~mol}^{-1}$$)

4
JEE Main 2023 (Online) 30th January Morning Shift
Numerical
+4
-1 A $$300 \mathrm{~mL}$$ bottle of soft drink has $$0.2 ~\mathrm{M}~ \mathrm{CO}_{2}$$ dissolved in it. Assuming $$\mathrm{CO}_{2}$$ behaves as an ideal gas, the volume of the dissolved $$\mathrm{CO}_{2}$$ at $$\mathrm{STP}$$ is ____________ $$\mathrm{mL}$$. (Nearest integer)

Given : At STP, molar volume of an ideal gas is $$22.7 \mathrm{~L} \mathrm{~mol}^{-1}$$

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