the vapour density of a gas may be defined as

Chemistry JAMB 1979

the vapour density of a gas may be defined as

  • the mass of a unit volume of the gas compared to an equal volume of water vapour
  • the mass of a unit volume of the gas compared to an equal volume of hydrogen checkmark
  • the mass of a unit volume of the gas compared to an equal volume of oxygen
  • the mass of a unit volume of the gas minus the vapour pressure of water
  • two times the relative molecular mass of the gas

The correct answer is: B

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