Question Detail

What is Calcium sulphate ?

  • epsom salt
  • blue vitriol
  • gypsum salt
  • potash alum
Similar Questions :

1. The most electropositive elements among the following is :

  • Cs
  • Ca
  • Na
  • Br

2. Which of the following gas is used in cigarette lighters ?

  • Butane
  • Propane
  • Methane
  • Ethane

3. Bleaching action of chlorine is by

  • decomposition
  • hydrolysis
  • reduction
  • oxidation

4. The high reactivity of fluorine is due to ?

  • small size of fluorine atom
  • its high electro negativity
  • availability of d-orbitals
  • strong F - F bond

5. Biogas majorly contains ?

  • Ethane
  • Methane
  • Hydrogen
  • CO
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