Punjab 11th Class Chemistry Chapter 3 Gases Mcqs Test Online
Questions 20
Total Marks 40
Time 20 Mins
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Punjab 11th Class Chemistry Chapter 3 Gases Mcqs Test Online

Start your preparation for Punjab 11th Class Chemistry Chapter 3 Gases Mcqs Test Online. This online test contains 20 MCQs and you have 20 Minutes to complete it. The total marks for this test are 40. This test is valid for students of All Punjab Boards (Lahore, Gujranwala, Multan, etc.) following the PCTB Syllabus. Read the questions carefully and select the correct option below to see your result.

Chemistry Chapter 3 Gases Mcqs Test Online Punjab 9th Class

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Question 1 of 20

Chemistry

1. When compressed hydrogen is allowed to expand rapidly, it causes

Question 1 of 20

Question 2 of 20

2. Which of the following gases has the lowest density under room conditions

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3. 760 torr are equal to Pascal.

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4. When steam condenses, the particles

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Question 5 of 20

5. When a large beaker full of N₂ is inverted over a porous pot containing Com the water level in the specified apparatus does not change. What is the reason for this:

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Question 6 of 20

6. Which statement explains why the compounds propane and CO₂ diffuse at the same rate?

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Question 7 of 20

7. Which of the following is an example of diffusion?

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Question 8 of 20

8. The particles of a gas can be described as

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Question 9 of 20

9. According to Graham’s Law of diffusion, the rate of diffusion of H₂ and O₂ has the ratio

Question 9 of 20

Question 10 of 20

10. What volume of gas would one mole of hydrogen occupy at S.T.P?

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Question 11 of 20

11. According to Kinetic Molecular theory K.E of Molecules increase when they

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Question 12 of 20

12. Deep sea diver’s tank contains

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Question 13 of 20

13. According to the kinetic theory of gases, the molecular collisions are elastic. Such collisions cause

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Question 14 of 20

14. One heating direct conversion of solid in to gas is called

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Question 15 of 20

15. In which of the following are the particles the most disordered.

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Question 16 of 20

16. Which statement provides the best evidence that matter may exist as tiny particles moving at “random motion”.

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Question 17 of 20

17. Which gas is more ideal at S.T.P.

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Question 18 of 20

18. In S.I units, the value of R is

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Question 19 of 20

19. The number of molecules of 4 g H₂ are _________ number of molecules of 56 g of N₂.

Question 19 of 20

Question 20 of 20

Abbreviations

20. Which of these changes would speed up the rate of diffusion the most.
NoMass of ParticleTemperature of Surroundings
ADecreaseDecrease
BDecreaseIncrease
CIncreaseIncrease
DIncreaseDecrease

Question 20 of 20


 

Guide for Punjab Board Students

Students of BISE Lahore, Gujranwala, Multan, and other Punjab boards must follow the SLO based pattern.

Top Scoring Tips for Punjab:

  • Textbook Reading: The paper is 100% derived from PCTB books. Do not rely only on keybooks.
  • Objective Paper (20%): Practice these online MCQs repeatedly as they are taken from 5-Year Past Papers.
  • Bubble Sheet: Ensure you know how to fill the OMR sheet correctly.

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