Basic GK Practice Question and Answer

Q:

What is the smallest unit of a chemical compound?

2835 0

  • 1
    Atomic
    Correct
    Wrong
  • 2
    electron
    Correct
    Wrong
  • 3
    Proton
    Correct
    Wrong
  • 4
    Molecules
    Correct
    Wrong
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Answer : 4. "Molecules"

Q:

Gun powder is a mixture of?

832 0

  • 1
    soil and TNT
    Correct
    Wrong
  • 2
    sulphur, clay and charcoal
    Correct
    Wrong
  • 3
    saltpeter, sulfur and charcoal
    Correct
    Wrong
  • 4
    TNT and charcoal
    Correct
    Wrong
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Answer : 3. "saltpeter, sulfur and charcoal"

Q:

Which substance is added to make natural rubber hard and bouncy?

706 0

  • 1
    Petrol Jelly
    Correct
    Wrong
  • 2
    sulfuric acid
    Correct
    Wrong
  • 3
    sulfur
    Correct
    Wrong
  • 4
    Sponge
    Correct
    Wrong
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Answer : 3. "sulfur"

Q:

Which of the following is essentially produced in the fermentation process?

695 0

  • 1
    ethyl alcohol
    Correct
    Wrong
  • 2
    Methyl alcohol
    Correct
    Wrong
  • 3
    acetic acid
    Correct
    Wrong
  • 4
    yeast
    Correct
    Wrong
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Answer : 1. "ethyl alcohol"

Q:

The marshy gas which is produced on decomposition of organic matter and is mostly found in coal mines, is the name of that gas?

713 0

  • 1
    ethane
    Correct
    Wrong
  • 2
    Methane
    Correct
    Wrong
  • 3
    carbon dioxide
    Correct
    Wrong
  • 4
    carbon monoxide
    Correct
    Wrong
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Answer : 2. "Methane"

Q:

Filling helium in balloons is considered more useful than hydrogen, because?

647 0

  • 1
    it is cheap
    Correct
    Wrong
  • 2
    less heavy
    Correct
    Wrong
  • 3
    more flying ability
    Correct
    Wrong
  • 4
    it does not form explosive mixture with air
    Correct
    Wrong
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Answer : 4. "it does not form explosive mixture with air"

Q:

Which element forms the maximum number of compounds with hydrogen?

670 0

  • 1
    Oxygen
    Correct
    Wrong
  • 2
    Silicon
    Correct
    Wrong
  • 3
    Carbon
    Correct
    Wrong
  • 4
    Nitrogen
    Correct
    Wrong
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Answer : 3. "Carbon"

Q:

Which element is found the most in minerals and rocks?

882 0

  • 1
    Carbon
    Correct
    Wrong
  • 2
    Silicon
    Correct
    Wrong
  • 3
    Hydrogen
    Correct
    Wrong
  • 4
    Boron
    Correct
    Wrong
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Answer : 1. "Carbon"

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