CBSE Class 11 Chemistry States of Matter Quiz 1

1. The vapour pressure of water at 300 K in a closed container is 0. 4 atm. If the volume of container is doubled, its vapour pressure at 300 K will be

A 0. 8 atm B 0. 2 atm C 0. 4 atm D 0. 6 atm

2. Name the liquid with higher vapour pressure in the following pairs:

A Alcohol, Water, Petrol B Petrol, Water, Alcohol C Alcohol, Petrol, Water D None of these

3. The rate of diffusion methane is twice that of X. The molecular mass of X is

A 64. 0 B 32. 0 C 40 D 80

4. The state of matter that shows the uniformity of behavior :

A Solid Liquid B Liquid C Gas D None of the Above

5. A gas deviates from ideal behavior at a high pressure because its molecules:

A Attract one another B Show the Tyndall Effect C Have kinetic energy D Are bound by covalent bonds

6. The value of universal gas constant R depends on

A Temperature of Gas B Volume of Gas C Number of Moles of Gas D Units of Volume,Temperature and Pressure

7. The critical volumes of four gases A, B, C, D are respectively 0. 025 L, 0. 312 L, 0. 245 L, 0. 432 L, the gas with highest value of van der Wall constant b is

A A B B C C D D

8. Which of the following statement is wrong for gases?

A Gases do not have definite shape and volume B Volume of the gas is equal to the volume of the container confining the gas C Confined gas exert uniform pressure on the wall of the container in all directions D Mass of the gas cannot be determined by weighing a container in which it is contained

9. In van der Waal equation of state of gas laws, the constant b is a measure of

A Intermolecular collisions per unit volume B Intermolecular attraction C Volume occupied by the molecules D Intermolecular repulsions

10. The volume of 2. 8 g of carbon monoxide at 27°C and 0. 0821 atm is

A 30 L B 3 L C 0. 3 L D 1. 5 L