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What is Calcium sulphate ?

  • epsom salt
  • blue vitriol
  • gypsum salt
  • potash alum

Answer: Option C

Similar Questions :

1. The ore which is found in abundance in India is

  • monazite
  • bauxite
  • magnetite
  • fluorspar

Answer: Option A

2. Which is also called Stranger Gas ?

  • Xenon
  • Neon
  • Argon
  • Nitrous oxide

Answer: Option A

3. Who proposed first atomic theory ?

  • E.Rutherford
  • De Broglie
  • John Dalton
  • D.I.Mendeleef

Answer: Option C

4. What is a mixture of potassium nitrate powdered charcoal and sulphur called?

  • paint
  • aluminium
  • brass
  • gun powder

Answer: Option D

Explanation:

gun powder is the mixture of potassium nitrate powdered charcoal and sulphur.

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

  • sodium thiosulphate
  • sodium sulphate
  • borax
  • ammonium sulphate

Answer: Option A

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