60 mL of a mixture of equal volume of Cl2 and an oxide of chlorine was heated and then cooled back to the original temperature. The resulting gas mixture was found to have volume of 75 ml. On treatment with caustic soda solution, the volume contracted to 15 ml. Assume that all the measurements are made at same T and P. Deduce the simplest formula for oxide of Cl2. The oxide of Cl2 on heating decomposes quantitatively to O2 and Cl2.

(1) ClO

(2) Cl2O

(3) ClO4

(4) Cl2O3

Subtopic:  Ideal Gas Law |
 62%
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For the reaction, N2 O(g)2NO2 (g) + 0.5 O2 (g),

Calculate the mole fraction of N2 O5 (g) decomposed at a constant volume and temperature if the initial pressure is 600 mm Hg and the pressure at any time is 960 mm Hg.  Assume ideal gas behaviour.

(1) 0.4

(2) 0.2

(3) 0.1

(4) 0.5

Subtopic:  Dalton's Law |
 51%
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An underwater bubble with radius of  5 cm at the bottom of tank , where the temperature is 5oC and pressure is 3 atm rises to the surface, where temperature is 25 oC and pressure is 1 atm. What will be the radius of bubble when it reaches to the surface?

(1) 7.4 cm

(2) 4.9 cm

(3) 9.4 cm

(4) 13 cm

Subtopic:  Ideal Gas Law |
 54%
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If density of vapours of a substance of molar mass 18 g/mole at 1 atm pressure and 500 K is

0.36 kg m–3 , then the value of Z for the vapours is-

(R = 0.082 L atm mole K–1)

1. 4150

2. 5041

3. 1.1

4. 0.9

Subtopic:  Ideal Gas Law |
 59%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh

Equal amount (mass) of methane and ethane have their total translational kinetic energy in the ratio

3: 1 then their temperatures are in the ratio.

(1) 5 : 8

(2) 45 : 8

(3) 15 : 8

(4) 8 : 5

Subtopic:  Kinetic Theory of Gas |
 57%
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The graph that represents an isobar nRp> 1 is-

1.  

2. 

3. 

4.  

Subtopic:  Ideal Gas Law |
 65%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh

For a certain gas which deviates a little from ideal behaviour, the values of density, p

were measured at different values of pressure, P. The plot of P/p on the Y–axis versus P on the X–axis was nonlinear and had an intercept on the Y–axis, which was equal to

(1) RTM

(2) MRT

(3) RT

(4) RTV

Where M = molar mass.

Subtopic:  Ideal Gas Law |
 69%
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A sample of water gas has a composition by volume of 50% H2, 45% CO and 5% CO2. Calculate the volume in litre at S.T.P. of water gas which on treatment with excess of stream will produce 5 litre H2. The equation for the reaction is : CO + H2O CO2+ H2

(1) 4.263 Litre

(2) 5.263 Litre

(3) 6.263 Litre

(4) 7.263 Litre

Subtopic:  Gas Laws |
 64%
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Flask A of volume 10 litre containing 20 gram of H2 and flask B of volume 10 litre containing 88 gram CO2 are connected by a connector having negligible volume. When the valve of the connector is opened, the composition of H2 gas in flask B after opening the valve is-

   

1. 10%

2. 13%

3. 15%

4. 20%

Subtopic:  Ideal Gas Law |
 55%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh

A mixture of two gases A and B in the mole ratio 2 : 3 is kept in a 2 litre vessel. A second 3 litre vessel has the same two gases in the mole ratio 3 : 5. Both gas mixtures have the same temperature and same total pressure. They are allowed to intermix ,the final temperature and total pressure are the same as the initial values, the final volume being 5 litres. Given that the molar masses are MA and MB, what is the mean molar mass of the final mixture?

(1) 77MA+123MB200

(2) 123MA+77MB200

(3) 77MA+123MB250

(4) 123MA+77MB250 

Subtopic:  Ideal Gas Law |
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