Which of the following gas is the densest :

Options :
  1. Air
  2. Ozone
  3. Chlorine
  4. Argon
Answer and Explanation :-

Answer: Option 3


Chlorine is a dense gas with a density of 3.21 grams per litre. The gas is solluble in water. it reacts chemically with water as it dissolves to form hydrochloric acid and hypchlorous acid.


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