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COMEDK2016ChemistryRedox Reactions

4 g of copper was dissolved in concentrated nitric aci(d) The copper nitrate solution on strong heating gave 5 g of its oxide. The equivalent weight of copper is

Options

  1. A12
  2. B20
  3. C23
  4. D32

Correct answer

D. 32

Step-by-step solution

Copper on reacting with conc. HNO ₃ gives copper nitrate. On strongly heating with copper nitrate, copper oxide is obtained. Equivalent weight of Cu = Weight of copper Equivalent weight of oxygen =4 8=32

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