General Science | Chemistry | Hydrocarbon
General Science | Chemistry | Hydrocarbon
1. In all bio-compounds the most necessary fundamental element is
Sulphur
Carbon
Oxygen
Nitrogen
Correct Answer
Wrong Answer
2. Which one of the following sets of elements was primarily responsible for the origin of life on the Earth?
Hydrogen, Oxygen, Sodium
Carbon, Hydrogen, Nitrogen
Oxygen, Calcium, Phosphorus
Carbon, Hydrogen, Potassium
Correct Answer
Wrong Answer
3. Which is the fundamental element of all organic compounds?
Nitrogen
Oxygen
Carbon
Brimstone
Correct Answer
Wrong Answer
4. Which one of the following was used as a chemical weapon in the First World War?
Carbon monoxide
Hydrogen cyanide
Mustard gas
Water gas
Correct Answer
Wrong Answer
5. Mustard gas is used
As a fuel gas
In chemical warfare
As a source of mustard oil
As a deodorant
Correct Answer
Wrong Answer
6. Poisonous mustard gas is a
Gas
Liquid
Solid
None of these
Correct Answer
Wrong Answer
7. Which of the following gases is used in cigarette lighters?
Butane
Methane
Propane
Radon
Correct Answer
Wrong Answer
8. Leakage of which of the following| gases had caused, the Bhopal Gas Tragedy?
Methyl isocyanate
Carbon mono-oxide
Nitric oxide
Sulphur dioxide
Correct Answer
Wrong Answer
9. From the decomposition of which of the following printing ink is formed?
Acetylene
Methane
Carbon tetrachloride
Benzene
Correct Answer
Wrong Answer
10. Methane gas producing field is
Wheat field
Paddy field
Cotton field
Groundnut field
Correct Answer
Wrong Answer
11. Which one of the following catalysts is used for hydrogenation of vegetable oils?
Zinc dust
Nickel
Platinum
Copper
Correct Answer
Wrong Answer
12. Which one of the following chemicals help in fruit ripening?
Ethephon
Atrazine
Isoproturan
Malathion
Correct Answer
Wrong Answer
13. Which of the following chemicals is used for ripening?
Sodium Chloride
Calcium Carbide
Potassium Chloride
None of the above
Correct Answer
Wrong Answer
14. Calcium Carbide is used for artificial: ripening of green fruits because it produces
Methylene
Auxin
Acetylene
Florigen
Correct Answer
Wrong Answer
15. Fruit ripening is promoted by which of the following?
Carbon dioxide
Sulphur dioxide
Nitrogen
Ethylene
Correct Answer
Wrong Answer
16. Which of the following gas mixture is used in welding gas?
Acetylene and Hydrogen
Oxygen and Acetylene
Hydrogen and Oxygen
Hydrogen and Helium
