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The oxide of Nitrogen used in medicine as anaesthetic is ?

  • Nitrogen pentoxide
  • Nitrous oxide
  • Nitric oxide
  • Nitrogen dioxide

Answer: Option A

Similar Questions :

1. Contact lenses are made from ?

  • Polyvinyl chloride
  • Teflon
  • Polystyrene
  • Lucite

Answer: Option A

2. Washing soda is ?

  • sodium sulphite
  • sodium bicarbonate
  • sodiun carbonate
  • sodium biosulphite

Answer: Option C

3. All noble gases are ?

  • colourless
  • colourless
  • colourless and odourless
  • colourless and but have odour

Answer: Option C

4. The chemical used as a fixer in photography is ?

  • sodium thiosulphate
  • sodium sulphate
  • borax
  • ammonium sulphate

Answer: Option A

5. Petroleum is found in ?

  • Marshy land
  • Metamorphic rocks
  • Igneous rock
  • Sedimentary rocks

Answer: Option D

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