Both CO2 and H2 gases are (1) heavier than air (2) colourless (3) acidic in nature (4) soluble in water

Answer: (2) Colourless

Properties of CO2

  • CO2 is a colourless gas
  • CO2is acidic in nature
  • CO2 is highly soluble
  • CO2 is heavier than air

Properties of H2

  • H2 is a colourless gas
  • H2 is not acidic in nature
  • H2 is not soluble
  • H2 is less haivier than air

∴ Both CO2 and H2 are colourless gases.

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