This chapter is currently out of syllabus
1
JEE Main 2022 (Online) 26th July Morning Shift
Numerical
+4
-1
Out of Syllabus

A mixture of hydrogen and oxygen contains $$40 \%$$ hydrogen by mass when the pressure is $$2.2$$ bar. The partial pressure of hydrogen is bar. (Nearest Integer)

2
JEE Main 2022 (Online) 25th July Evening Shift
Numerical
+4
-1
Out of Syllabus

A sealed flask with a capacity of 2 dm3 contains 11 g of propane gas. The flask is so weak that it will burst if the pressure becomes 2 MPa. The minimum temperature at which the flask will burst is ___________ $$^\circ$$C. [Nearest integer]

(Given : R = 8.3 J K$$-$$1 mol$$-$$1 , Atomic masses of C and H are 12u and 1u, respectively.) (Assume that propane behaves as an ideal gas.)

3
JEE Main 2022 (Online) 25th July Morning Shift
Numerical
+4
-1
Out of Syllabus

The pressure of a moist gas at $$27^{\circ} \mathrm{C}$$ is $$4 \mathrm{~atm}$$. The volume of the container is doubled at the same temperature. The new pressure of the moist gas is ________________ $$\times 10^{-1} \mathrm{~atm}$$. (Nearest integer)

(Given : The vapour pressure of water at $$27^{\circ} \mathrm{C}$$ is $$0.4 \mathrm{~atm} .$$ )

4
JEE Main 2022 (Online) 29th June Morning Shift
Numerical
+4
-1
Out of Syllabus

Geraniol, a volatile organic compound, is a component of rose oil. The density of the vapour is 0.46 gL$$-$$1 at 257$$^\circ$$C and 100 mm Hg. The molar mass of geraniol is ____________ g mol$$-$$1. (Nearest Integer)

[Given : R = 0.082 L atm K$$-$$1 mol$$-$$1]