Science GK Practice Question and Answer

Q:

Which of the following electromagnetic waves has the highest wavelength?

837 0

  • 1
    Ultraviolet rays
    Correct
    Wrong
  • 2
    Sunlight
    Correct
    Wrong
  • 3
    Gamma rays
    Correct
    Wrong
  • 4
    infrared rays
    Correct
    Wrong
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Answer : 4. "infrared rays"

Q:

Solute can be separated from solution?

832 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:

Which of the following method is adopted to remove salt from sea water?

832 0

  • 1
    sublimation
    Correct
    Wrong
  • 2
    Evaporation
    Correct
    Wrong
  • 3
    crystallization
    Correct
    Wrong
  • 4
    distillation
    Correct
    Wrong
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Answer : 2. "Evaporation"

Q:

Which gas is used for unnatural ripening of fruits?

831 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 is NOT an example of Pteridophyta? 

830 0

  • 1
    Funaria
    Correct
    Wrong
  • 2
    Selaginella
    Correct
    Wrong
  • 3
    Equisetum
    Correct
    Wrong
  • 4
    Pteris
    Correct
    Wrong
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Answer : 1. "Funaria "

Q:

By which process oil is converted into Vegetable Ghee?

830 0

  • 1
    Hydrogenation
    Correct
    Wrong
  • 2
    Distillation
    Correct
    Wrong
  • 3
    Oxidation
    Correct
    Wrong
  • 4
    Reduction
    Correct
    Wrong
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Answer : 1. "Hydrogenation"

Q:

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

826 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:

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

819 0

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

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