Science GK Practice Question and Answer

Q:

Which one of the following is an alloy?

1095 1

  • 1
    Zinc
    Correct
    Wrong
  • 2
    Steel
    Correct
    Wrong
  • 3
    lead
    Correct
    Wrong
  • 4
    aluminum
    Correct
    Wrong
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Answer : 2. "Steel"

Q:

Vegetable oils are converted into ghee?

1374 0

  • 1
    Heat treatment
    Correct
    Wrong
  • 2
    hydrogenation
    Correct
    Wrong
  • 3
    oxygen
    Correct
    Wrong
  • 4
    by enzymes
    Correct
    Wrong
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Answer : 2. "hydrogenation"

Q:

Rust on iron?

1262 0

  • 1
    ferric oxide
    Correct
    Wrong
  • 2
    Hydrated ferrous and ferric oxide
    Correct
    Wrong
  • 3
    Alkali ferrous and ferric carbonate
    Correct
    Wrong
  • 4
    Because of all of the above
    Correct
    Wrong
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Answer : 4. "Because of all of the above"

Q:

What substance dissolves in Tears?

4117 0

  • 1
    Common salt
    Correct
    Wrong
  • 2
    sea
    Correct
    Wrong
  • 3
    strach
    Correct
    Wrong
  • 4
    Glucose
    Correct
    Wrong
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Answer : 1. "Common salt"

Q:

What species are found abundantly in ecotone, what is called?

1028 0

  • 1
    Edge species
    Correct
    Wrong
  • 2
    Keystone species
    Correct
    Wrong
  • 3
    Endemic species
    Correct
    Wrong
  • 4
    Foster species
    Correct
    Wrong
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Answer : 1. "Edge species"

Q:

Who propounded the term ecology?

2125 0

  • 1
    Charles Darwin
    Correct
    Wrong
  • 2
    Robert Whitaker
    Correct
    Wrong
  • 3
    Arthur Tansley
    Correct
    Wrong
  • 4
    Ernest Hackle
    Correct
    Wrong
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Answer : 4. "Ernest Hackle"

Q:

What is the following statements is incorrect.

1289 0

  • 1
    Photochemical haze always contains ozone.
    Correct
    Wrong
  • 2
    The toxic effect of carbon monoxide is more attractive to hemoglobin than oxygen.
    Correct
    Wrong
  • 3
    Lead is the most dangerous metal pollutant of automobile exhaust
    Correct
    Wrong
  • 4
    None of these
    Correct
    Wrong
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Answer : 4. "None of these"

Q:

Which of the following is not a greenhouse gas?

1575 0

  • 1
    methane
    Correct
    Wrong
  • 2
    nitrous oxide
    Correct
    Wrong
  • 3
    Sulfur Hexa Fluoride
    Correct
    Wrong
  • 4
    carbon monoxide
    Correct
    Wrong
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Answer : 4. "carbon monoxide"

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