General Science | Chemistry | Sulphur, Nitrogen, Halogen, Inert Gases
General Science | Chemistry | Sulphur, Nitrogen, Halogen, Inert Gases
1. What is the approximate percentage of Nitrogen present in the atmosphere?
10-11%
18-20%
40-42%
78-79%
Correct Answer
Wrong Answer
2. Which gas is known as 'noble gas'?
Hydrogen
Oxygen
Helium
Carbon dioxide
Correct Answer
Wrong Answer
3. Percentage amount (by volume) of which one of the following gas is lowest in the atmosphere?
Argon
Carbon dioxide
Nitrogen
Oxygen
Correct Answer
Wrong Answer
4. Which gas is mixed with Oxygen for respiration by divers in deep sea?
Helium
Nitrogen
Xenon
Ammonia
Correct Answer
Wrong Answer
5. Which one of the following mixture of gas is used by the deep sea divers?
Mixture of Helium-Oxygen
Mixture of Helium-Nitrogen
Mixture of Oxygen-Acetylene
Mixture of Oxygen-Hydrogen
Correct Answer
Wrong Answer
6. What is the shape of sulphur hexafluoride molecule?
Trigonal pyramid
Octahedral
Planar
Tetrahedral
Correct Answer
Wrong Answer
7. Easily soluble in water
Carbon
Nitrogen
Ammonia
Iodine
Correct Answer
Wrong Answer
8. Which is used as Laughing gas?
Nitrous oxide
Nitrogen dioxide
Nitrogen trioxide
Nitrous Oxide
Correct Answer
Wrong Answer
9. Which one of the following is also called Stranger Gas?
Argon
Neon
Xenon
Nitrous oxide
Correct Answer
Wrong Answer
10. Discharge of Nitrogen causes
Increase in the amount of atmospheric nitrogen
Increase in the amount of Nitrogen in lithosphere
The amount of Nitrogen in lithosphere and in atmosphere unchanged
Destruction of nitrates bacterial
Correct Answer
Wrong Answer
11. The gas used to inflate the tyres of an aircraft is
Hydrogen
Nitrogen
Helium
Neon
Correct Answer
Wrong Answer
12. In order to compensate the deficiency of which of the following elements, the insectivorous plants trap and eat insects?
Manganese
Nitrogen
Magnesium
Sulphur
Correct Answer
Wrong Answer
13. The soil in which insectivorous plants grow is deficient in
Magnesium
Calcium
Nitrogen
Water
Correct Answer
Wrong Answer
14. Which gas is usually filled in the balloon?
Hydrogen
Oxygen
Carbon dioxide
Helium
Correct Answer
Wrong Answer
15. Helium is preferred to Hydrogen in air balloons because it
Is cheaper
Is less dense
Has greater lifting power
Does not form an explosive mixture with air
Correct Answer
Wrong Answer
16. Tear gas is
Ammonia
Chlorine
Hydrogen Carbide
Hydrogen Sulphide
Correct Answer
Wrong Answer
17. The foul smell of dead fish is due to the compound
Amino compounds
Aldehydic compounds
Sulphur compounds
Nitro compounds
Correct Answer
Wrong Answer
18. Which of the following remains in a solid state at normal temperature?
Chlorine
Bromine
Iodine
Fluorine
Correct Answer
Wrong Answer
19. Which of the following is not optically active?
Glycine
Alanine
Serine
All of these
Correct Answer
Wrong Answer
20. The most reactive among the Halogens is
Fluorine
Chlorine
Bromine
Iodine
Correct Answer
Wrong Answer
21. The halogen being used as analgesic is
Chlorine
Bromine
Iodine
Fluorine
Correct Answer
Wrong Answer
22. Which has is filled at low pressure in a tube light?
Argon and Neon
Neon and Mercury vapour
Nitrogen and Neon
Only Argon
Correct Answer
Wrong Answer
23. Tubelight is filled with
Sodium vapour
Argon gas at low pressure
Mercury vapour at low pressure
Both (B) and (C)
