Question Detail

Air is a

  • compound
  • colloid
  • element
  • mixture
Similar Questions :

1. Water drops are spherical because of ?

  • viscosity
  • density
  • polarity
  • surface tension

2. Atomic number is equal to

  • Number of electrons
  • Number of nutron
  • Number of protons
  • Total number of protons and neutrons

3. Acid rain is due to air pollution by ?

  • Carbon dioxide
  • Carbon monoxide
  • Methane
  • Nitrous oxide and Sulphur dioxide

4. The single acid which dissolves gold is ?

  • Aqua regia
  • Hydrochloric acid
  • Nitric acid
  • Selenic acid

5. Which of the following gases is the most toxic?

  • Carbon dioxide
  • Sulphur dioxide
  • Carbon monoxide
  • Acetic acid
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