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Q: Chloroform used as anaesthetic should be preserved in the dark in tightly stoppered bottles because otherwise

  • 1
    it becomes coloured
  • 2
    it gets evaporated in air
  • 3
    it gets oxidised to phosgene
  • 4
    it gets decomposed to chloropicrin
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Answer : 3. "it gets oxidised to phosgene"
Explanation :

Answer: C) it gets oxidised to phosgene Explanation: Chloroform, CHCl3 is easily oxidised to the highly poisonous gas known as phosgene or carbonyl chloride COCl2. Hence if it is used as anaesthetic it should be kept free from sunlight and air.

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