GKGK SCIENCE

QUESTIONS ON GASES AND THEIR USES

QUESTIONS ON GASES AND THEIR USES

1. Gas used in LPG–Butane, Propane and Ethane

2. Tear Gas—Ammonia (NH3)

3. Gas with foul smell—Hydrogen Sulphide (H2S)

4. Laughing gas—Nitrous Oxide (N2O)

5. Gas used in refrigeration—Freon

6. Freon, the gas used in refrigeration is chemically known as–Diflouro Dichloro Methane

7. Gobar gas is a mixture of—Methane, CO2 and hydrogen

8. Gas mixed with oxygen and given to patients with restricted breathing— Helium

9. A major air pollutant, the percentage presence of which is checked in vehicle pollution test—Carbon monoxide

10. The gas which is responsible for the formation of brown air in traffic congested cities— Nitrogen oxide

11. Major gaseous pollutant of areas located near thermal power station—-Suphur dioxide

12. Natural gas—Mainly methane with small quantities of ethane and propane

13. Strong smelling substance added to LPG—Ethyl Mercaptan or Ethanethiol

14. Gases responsible for depletion of ozone layer—Chloroflouro carbons

15. Gas used in gas welding and also artificial ripening of fruits—Acetylene

16. Gas used in electric bulbs—Argon

17. Gas used in flourescent lamps—Mercury vapour

18. Gas known as marsh gas—Methane

19. Gas responsible for acid rain—Sulphur dioxide

20. Gas most abundant in earth’s atmosphere—-Nitrogen (78%)

21. Percentage of oxygen in earth’s atmosphere—21% (approx)

COURTESY Mr MANOJ KUMAR

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Maha Gupta

Maha Gupta

Founder of www.examscomp.com and guiding aspirants on SSC exam affairs since 2010 when objective pattern of exams was introduced first in SSC. Also the author of the following books:

1. Maha English Grammar (for Competitive Exams)
2. Maha English Practice Sets (for Competitive Exams)