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Which of the following gases is the most toxic?

  • Carbon dioxide
  • Sulphur dioxide
  • Carbon monoxide
  • Acetic acid
Similar Questions :

1. Which element found in all organic compounds ?

  • carbon
  • nitrogen
  • calcium
  • none of them

2. Which acid is present in lemon ?

  • marlic acid
  • citric acid
  • lactic acid
  • tartaric acid

3. Which have maximum number of isotopes ?

  • Bromine
  • Aluminium
  • Polonium
  • Carbon

4. Air is a

  • compound
  • colloid
  • element
  • mixture

5. Which gas is filled in refrigerators ?

  • Chlorofluorocarbon
  • Acetylene
  • Methane
  • Butane
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