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The metal used to recover copper from a solution of copper sulphate is ?

  • Na
  • Ag
  • Hg
  • Fe

Answer: Option D

Similar Questions :

1. Which gas is used to manufacture vanaspati from vegetable oil is

  • carbon dioxide
  • nitrogen
  • oxygen
  • hydrogen

Answer: Option D

2. Ozone is :

  • Non-magnetic
  • Paramagnetic
  • Ferromagnetic
  • Diamagnetic

Answer: Option D

3. Washing soda is ?

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

Answer: Option C

4. The gas used for artificial ripening of green fruit is ?

  • ethane
  • ethylene
  • carbon dioxide
  • acetylene

Answer: Option B

5. The term PVC used in the plastic industry stands for

  • polyvinyl chloride
  • polyvinyl carbobate
  • phosphor vanadiu chloride
  • phosphavinyl chloride

Answer: Option A

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