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All noble gases are ?

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

Answer: Option C

Similar Questions :

1. The major component used in preparation of different types of glasses is :

  • Sodium borate
  • Sodium silicate
  • Silica
  • Calcium silicate

Answer: Option C

2. The substance that contains the maximum amount of nitrogen is ?

  • Ammonium Sulphate
  • Urea
  • Ammonium Nitrate
  • Ammonium Chloride

Answer: Option B

3. The metallurgical process in which a metal is obtained in a fused state is called ?

  • roasting
  • calcinations
  • smelting
  • froth floatation

Answer: Option C

4. How many different oxides are formed by nitrogen ?

  • two
  • three
  • four
  • five

Answer: Option A

5. Alloys made with mercury as one metal are called ?

  • mixtures
  • emulsions
  • solders
  • amalgams

Answer: Option D

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