Previous Year Papers

Download Solved Question Papers Free for Offline Practice and view Solutions Online.

Test Series

Take Zigya Full and Sectional Test Series. Time it out for real assessment and get your results instantly.

Test Yourself

Practice and master your preparation for a specific topic or chapter. Check you scores at the end of the test.
Advertisement

 Multiple Choice QuestionsMultiple Choice Questions

Advertisement
1.

For same mass of two different ideal gases of molecular weights M1 and M2, Plots of log V vs log p at a given constant temperature are shown. Identify the correct option.

  • M1 > M2

  • M1 = M2

  • M1 < M2

  • Can be predicted only if temeperature is known


2.

The pressure exerted by 6.0g of methane gas in a 0.03 mvessel at 129°C is (Atomic masses: C = 12.01, H = 1.01 and R= 8.314JK-1 mol-1)

  • 215216 Pa

  • 13409 Pa

  • 41648 Pa

  • 31684 Pa


3.

In clatherates of xenon with water, the nature of bonding between xenon and water molecule is

  • dipole induced dipole interaction

  • coordinate

  • hydrogen bonding

  • covalent


4.

The equation that represents general van't Hoff equation is 

  • π= nVRT

  • π= nRT

  • π= VnRT

  • π= nVRT


Advertisement
5.

The vapour pressure of two liquids X and Y are 80 and 60 Torr respectively. The total vapour pressure of the ideal solution obtained by mixing 3 moles of X and 2 moles of Y would be

  • 68 Torr

  • 140 Torr

  • 48 Torr

  • 72 Torr


6.

Which one of the following volume (V)- temperature (T) plots represents the behaviour of one mole of an ideal gas at one atmospheric pressure?


7.

4 g of an ideal gas occupies 5.6035 L of volume at 546 K and 2 atmosphere pressure. What is its molecular weight?

  • 4

  • 16

  • 32

  • 64


8.

If a gas contains only three molecules that move with velocities of 100, 200, 500 ms-1. What is the rms velocity of that gas in ms-1?

  • 10083

  • 100√30

  • 100√10

  • 800/3


Advertisement
9.

CH4 diffuses two times faster than a gas X. The number of molecules present in 32 g ofgas X is (N is Avogadro number)

  • N

  • N/2

  • N/4

  • N/16


10.

Assertion (A): van der Waals' forces are reponsible for chemisorptions.

Reason (R): High temperature is favourable for chemisorptions.

The correct answer is:

  • (A) is false, but (R) is true

  • Both (A) and (R) are correct and (R) is the correct explanation of A

  • Both (A) and (R) are correct and (R) is not the correct explanation of (A)

  • (A) is true, but (R) is false


Advertisement