Noble Gases MCQ Questions and Answers for Practice

1. All noble gases are ?

1. colourless
2. colourless
3. colourless and odourless
4. colourless and but have odour

2. How many valence electrons does a noble gas typically have?

1. 8
2. 6
3. 4
4. 2

3. Nobel gases are group of elements which exhibit

1. high chemical activity
2. low chemical activity
3. minimum electronegativity
4. much paramagnetic properties

4. Nobel gases do not react with other elements because

1. They have completely paired up and stable electron shells
2. The size of ther atoms are very small
3. They are not found in abundance
4. Are monoatomic

5. Number of unpaired electron in inert gas is

1. 8
2. 4
3. 18

6. The inert gases are

1. Polyatomic
2. Triatomic
3. Diatomic
4. Monoatomic

7. The nobel gas which forms maximum number of compound is

1. Argon
2. Helium
3. Xenon
4. Neon

8. The valency of inert gas is

1. 1
2. 2
3. 5

9. What is another name for the noble gases?

1. stable gases
2. cool gases
3. inert gases
4. reactive gases

10. Which is the lightest gas

1. Helium
2. Oxygen
3. Hydrogen
4. Nitrogen

11. Which nobel gas is most soluble in water

1. Argon
2. Helium
3. Neon
4. Xenon

12. Which noble gas can harm you if you inhale it?

1. all of them
2. xenon
3. radon
4. krypton

13. Which noble gas is found in signs or light displays?

1. neon
2. argon
3. helium
4. krypton

14. Which noble gas is found in the Sun?

1. hydrogen
2. helium
3. neon
4. krypton

15. Which noble gas is the exception to the octet (stable-8) rule?

1. neon
2. helium
3. argon
4. xenon