Chemistry Practice Question and Answer

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 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:

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:

Is zinc ore?

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  • 1
    zinc blade
    Correct
    Wrong
  • 2
    Bauxite
    Correct
    Wrong
  • 3
    sodium chloride
    Correct
    Wrong
  • 4
    Sinawar
    Correct
    Wrong
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Answer : 1. "zinc blade"

Q:

What is the pH value of sodium hydroxide?

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  • 1
    11
    Correct
    Wrong
  • 2
    12
    Correct
    Wrong
  • 3
    13
    Correct
    Wrong
  • 4
    14
    Correct
    Wrong
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Answer : 4. "14"

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 "

Q:

What substance is formed by the action of chlorine gas on dry quenched lime?

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  • 1
    calcium chloride
    Correct
    Wrong
  • 2
    bleaching powder
    Correct
    Wrong
  • 3
    Hydrochloric acid
    Correct
    Wrong
  • 4
    Water
    Correct
    Wrong
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Answer : 2. "bleaching powder"

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