Multiple choice

Nitrous oxide is a colourless, sweet-smelling gas with a density of __________.

  1. 1.5

  2. 0.5

  3. 2.5

  4. 3.5
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Boiling point: -88.5oC Melting point: -90.8oC Relative density (water = 1): 1.23 at -89oC Solubility in water (g/100 ml at 15oC: 0.15) Vapour pressure (k Pa at 20oC): 5150 Relative vapour density (air = 1): 1.53

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