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Practical Work

Test for hydrogen (H2):

  • A burning wooden splint when brought near this gas gets off and burns with a pale blue flame producing a pop sound. 

Test for oxygen (O2):

  • A burning wooden splint when brought near this gas re-lights brightly which shows that it is a supporter of combustion. 

Test for water vapour (H2O):

  • It turns anhydrous copper sulphate to blue.
  • It turns blue copper chloride to pink.


Test for ammonia (NH3):

  • Dense white fumes are formed when a rod dipped in HCl is brought near this gas. 

Test for carbon dioxide (…

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