Science GK Practice Question and Answer

Q:

Black soil color is black due to presence of abundant minerals?

724 0

  • 1
    Zinc
    Correct
    Wrong
  • 2
    Copper
    Correct
    Wrong
  • 3
    Manganese
    Correct
    Wrong
  • 4
    Aluminum
    Correct
    Wrong
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Answer : 3. "Manganese"

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?

719 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:

Which gas is used for unnatural ripening of fruits?

717 0

  • 1
    Ethylene
    Correct
    Wrong
  • 2
    ethane
    Correct
    Wrong
  • 3
    carbon dioxide
    Correct
    Wrong
  • 4
    Acetylene
    Correct
    Wrong
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Answer : 1. "Ethylene"

Q:

Which of the following gas is not present in the atmosphere?

716 0

  • 1
    Nitrogen
    Correct
    Wrong
  • 2
    Helium
    Correct
    Wrong
  • 3
    Chlorine
    Correct
    Wrong
  • 4
    Krypton
    Correct
    Wrong
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Answer : 3. "Chlorine"

Q:

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

716 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:

Solute can be separated from solution?

710 0

  • 1
    filtration
    Correct
    Wrong
  • 2
    evaporation
    Correct
    Wrong
  • 3
    Decantation
    Correct
    Wrong
  • 4
    sedimentation
    Correct
    Wrong
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Answer : 2. "evaporation"

Q:

What poison group is suitable for juicy juvenile insects?

704 0

  • 1
    gastric venom
    Correct
    Wrong
  • 2
    poisoning
    Correct
    Wrong
  • 3
    Somatic / all round venom
    Correct
    Wrong
  • 4
    tactile venom
    Correct
    Wrong
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Answer : 3. "Somatic / all round venom"

Q:

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

703 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"

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