Science GK Practice Question and Answer

Q:

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

723 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:

On heating potassium chlorate?

762 0

  • 1
    Nitrogen gas is released
    Correct
    Wrong
  • 2
    Oxygen gas is released
    Correct
    Wrong
  • 3
    Hydrogen gas is released
    Correct
    Wrong
  • 4
    none of these
    Correct
    Wrong
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Answer : 2. "Oxygen gas is released"

Q:

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

712 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:

Solute can be separated from solution?

705 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 acid is used as a dehydrating agent?

807 0

  • 1
    hydrochloric acid
    Correct
    Wrong
  • 2
    sulfuric acid
    Correct
    Wrong
  • 3
    acetic acid
    Correct
    Wrong
  • 4
    nitric acid
    Correct
    Wrong
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Answer : 2. "sulfuric acid"

Q: The metallurgical process in which a metal is obtained in a fused state is called ? 1780 0

  • 1
    roasting
    Correct
    Wrong
  • 2
    calcinations
    Correct
    Wrong
  • 3
    smelting
    Correct
    Wrong
  • 4
    froth floatation
    Correct
    Wrong
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Answer : 3. "smelting"

Q:

Excessive use of sterilized fertilizers in sugarcane increases the outbreak?

680 0

  • 1
    White fly
    Correct
    Wrong
  • 2
    Stem borer
    Correct
    Wrong
  • 3
    Pyrilla
    Correct
    Wrong
  • 4
    None of these
    Correct
    Wrong
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Answer : 3. "Pyrilla"

Q:

Ensure a regular market?

897 0

  • 1
    Purchase Price
    Correct
    Wrong
  • 2
    Support Price
    Correct
    Wrong
  • 3
    Remuneration Price
    Correct
    Wrong
  • 4
    Fair Price
    Correct
    Wrong
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Answer : 4. "Fair Price"

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