1

JEE Main 2021 (Online) 17th March Evening Shift

Numerical

+4

-1

The number of chlorine atoms in 20 mL of chlorine gas at STP is _________ 10

[Assume chlorine is an ideal gas at STP

R = 0.083 L bar mol

^{21}. (Round off to the Nearest Integer).[Assume chlorine is an ideal gas at STP

R = 0.083 L bar mol

^{$$-$$1}K^{$$-$$1}, N_{A}= 6.023 $$\times$$ 10^{23}]Your input ____

2

JEE Main 2021 (Online) 17th March Evening Shift

Numerical

+4

-1

Consider the reaction

$$N_{2}O_{4}\left( g\right) \rightleftharpoons 2NO_{2}\left( g\right) $$

The temperature at which K

$$N_{2}O_{4}\left( g\right) \rightleftharpoons 2NO_{2}\left( g\right) $$

The temperature at which K

_{C}= 20.4 and K_{P}= 600.1, is ____________ K. (Round off to the Nearest Integer). [Assume all gases are ideal and R = 0.0831 L bar K^{$$-$$1}mol^{$$-$$1}]Your input ____

3

JEE Main 2021 (Online) 16th March Evening Shift

Numerical

+4

-1

At 363 K, the vapour pressure of A is 21 kPa and that of B is 18 kPa. One mole of A and 2 moles of B are mixed. Assuming that this solution is ideal, the vapour pressure of the mixture is ___________ kPa. (Round off to the Nearest Integer).

Your input ____

4

JEE Main 2021 (Online) 26th February Morning Shift

Numerical

+4

-1

3.12 g of oxygen is adsorbed on 1.2 g of platinum metal. The volume of oxygen adsorbed per gram of the adsorbent at 1 atm and 300 K in L is __________.

[R = 0.0821 L atm K

[R = 0.0821 L atm K

^{$$-$$1}mol^{$$-$$1}]Your input ____

Questions Asked from Gaseous State (Numerical)

Number in Brackets after Paper Indicates No. of Questions

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