Basic Science Practice Question and Answer

Q:

The level of sound during normal conversation is

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  • 1
    20 db
    Correct
    Wrong
  • 2
    40 db
    Correct
    Wrong
  • 3
    60 db
    Correct
    Wrong
  • 4
    80 db
    Correct
    Wrong
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Answer : 3. "60 db"

Q:

Where is Dachigam National Park?

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  • 1
    Jammu Kashmir
    Correct
    Wrong
  • 2
    Himachal Pradesh
    Correct
    Wrong
  • 3
    Uttarakhand
    Correct
    Wrong
  • 4
    Punjab
    Correct
    Wrong
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Answer : 1. "Jammu Kashmir"

Q:

Which of the following acids is used in car batteries?

1688 0

  • 1
    Nitric acid
    Correct
    Wrong
  • 2
    Hydrochloric acid
    Correct
    Wrong
  • 3
    Sulphuric acid
    Correct
    Wrong
  • 4
    Hydrofloric acid
    Correct
    Wrong
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Answer : 3. "Sulphuric acid"
Explanation :

sulphuric acid is used in car batteries.

Q:

His melting point increasing the pressure on ice?

1685 1

  • 1
    will decrease
    Correct
    Wrong
  • 2
    will increase
    Correct
    Wrong
  • 3
    will be zero
    Correct
    Wrong
  • 4
    will remain unchanged
    Correct
    Wrong
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Answer : 1. "will decrease"

Q:

What is the following statements is incorrect.

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  • 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:

Why are white dresses worn in summer?

1671 0

  • 1
    Bad absorbers of heat are
    Correct
    Wrong
  • 2
    are cheap
    Correct
    Wrong
  • 3
    are attractive
    Correct
    Wrong
  • 4
    None of these
    Correct
    Wrong
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Answer : 1. "Bad absorbers of heat are"

Q:

When a metal is heated, its density?

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  • 1
    increases
    Correct
    Wrong
  • 2
    There is no difference
    Correct
    Wrong
  • 3
    decreases
    Correct
    Wrong
  • 4
    None of the above
    Correct
    Wrong
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Answer : 3. "decreases"

Q:

Which gas is used in the food packaging industry to prevent chips from getting oxidized?

1663 0

  • 1
    Nitrogen
    Correct
    Wrong
  • 2
    Hydrogen
    Correct
    Wrong
  • 3
    Helium
    Correct
    Wrong
  • 4
    Carbon
    Correct
    Wrong
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Answer : 1. "Nitrogen"

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