Chemistry General Knowledge Questions Practice Question and Answer

Q:

Boiling Point of a liquid due to impurities

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  • 1
    increases
    Correct
    Wrong
  • 2
    decreases
    Correct
    Wrong
  • 3
    remains unchanged
    Correct
    Wrong
  • 4
    None of these
    Correct
    Wrong
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Answer : 1. "increases"

Q:

Methane an air pollutant is produced ___________

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  • 1
    by burning of coal in insufficient air
    Correct
    Wrong
  • 2
    by digestion of food by animals
    Correct
    Wrong
  • 3
    by action of ultraviolet light on nitrogenous compounds.
    Correct
    Wrong
  • 4
    as a by-product of manufacturing ammoniacal fertilizers
    Correct
    Wrong
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Answer : 2. "by digestion of food by animals"

Q:

What is used of Capacitor in an electrical circuit?

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  • 1
    Step down voltage
    Correct
    Wrong
  • 2
    Step up voltage
    Correct
    Wrong
  • 3
    Store electric charge
    Correct
    Wrong
  • 4
    Produce electric charge
    Correct
    Wrong
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Answer : 3. "Store electric charge"

Q:

The basis of classification of elements in modern periodic table is based on___.

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  • 1
    Atomic number
    Correct
    Wrong
  • 2
    Atomic mass
    Correct
    Wrong
  • 3
    Atomic volume
    Correct
    Wrong
  • 4
    Atomic density
    Correct
    Wrong
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Answer : 1. "Atomic number "

Q:

The stranger gas is also known as___________. 

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  • 1
    Helium
    Correct
    Wrong
  • 2
    Argon
    Correct
    Wrong
  • 3
    Xenon
    Correct
    Wrong
  • 4
    Neon
    Correct
    Wrong
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Answer : 3. "Xenon "

Q:

'Every substance in the world is made up of very fine particles.' Who said this first?

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  • 1
    Dalton
    Correct
    Wrong
  • 2
    Kanad
    Correct
    Wrong
  • 3
    Rutherford
    Correct
    Wrong
  • 4
    Avogadro
    Correct
    Wrong
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Answer : 1. "Dalton"

Q:

How many categories of elements are divided on the basis of properties?

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  • 1
    4
    Correct
    Wrong
  • 2
    6
    Correct
    Wrong
  • 3
    3
    Correct
    Wrong
  • 4
    2
    Correct
    Wrong
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Answer : 3. "3"

Q:

Baking soda is 

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  • 1
    Sodium Sulphate
    Correct
    Wrong
  • 2
    Sodium Hydroxide
    Correct
    Wrong
  • 3
    Sodium Chloride
    Correct
    Wrong
  • 4
    Sodium Bicarbonate
    Correct
    Wrong
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Answer : 4. "Sodium Bicarbonate "

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