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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. Acid rain is due to air pollution by ?

  • Carbon dioxide
  • Carbon monoxide
  • Methane
  • Nitrous oxide and Sulphur dioxide

Answer: Option D

2. The most abundant rare gas in the atmosphere is ?

  • He
  • Ne
  • Ar
  • Xe

Answer: Option C

3. Which acid is present in lemon ?

  • marlic acid
  • citric acid
  • lactic acid
  • tartaric acid

Answer: Option B

Explanation:

citric acid is present in lemon.

4. Oil of vitriol is

  • nitric acid
  • sulphuric acid
  • hydrochloric acid
  • phosphoric acid

Answer: Option B

5. Petroleum is found in ?

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

Answer: Option D

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