Chemistry General Knowledge Questions Practice Question and Answer

Q:

The percentage of nitrogen present in ammonium sulphate is: 

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  • 1
    $$ 30.5 \% $$
    Correct
    Wrong
  • 2
    $$ 18 \% $$
    Correct
    Wrong
  • 3
    $$ 21 \% $$
    Correct
    Wrong
  • 4
    $$ 25\% $$
    Correct
    Wrong
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Answer : 3. "$$ 21 \% $$"

Q:

The stranger gas is also known as___________. 

1106 0

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

Q:

Which of the following gases turn lime water milky?

1024 0

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

Q:

Which of the following has the least melting point?

787 1

  • 1
    Carbon
    Correct
    Wrong
  • 2
    Silver
    Correct
    Wrong
  • 3
    Mercury
    Correct
    Wrong
  • 4
    Gold
    Correct
    Wrong
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Answer : 3. "Mercury "

Q:

What is the common name of CaoCl2?

794 0

  • 1
    Washing Soda
    Correct
    Wrong
  • 2
    Bleaching Powder
    Correct
    Wrong
  • 3
    Baking Powder
    Correct
    Wrong
  • 4
    Baking Soda
    Correct
    Wrong
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Answer : 2. "Bleaching Powder "

Q:

How are 'anions' formed?

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  • 1
    Addition of electron
    Correct
    Wrong
  • 2
    Removal of electron
    Correct
    Wrong
  • 3
    Addition of proton
    Correct
    Wrong
  • 4
    Removal of proton
    Correct
    Wrong
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Answer : 1. "Addition of electron "

Q:

The coil in a heater is made of

734 1

  • 1
    Nichrome
    Correct
    Wrong
  • 2
    Tungsten
    Correct
    Wrong
  • 3
    Copper
    Correct
    Wrong
  • 4
    Iron
    Correct
    Wrong
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Answer : 1. "Nichrome"

Q:

In which process is a protective zinc coating applied on iron to prevent it from rusting?

843 0

  • 1
    Galvanisation
    Correct
    Wrong
  • 2
    Annealing
    Correct
    Wrong
  • 3
    Smelting
    Correct
    Wrong
  • 4
    Welding
    Correct
    Wrong
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Answer : 1. "Galvanisation"

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