COMEDK · Chemistry · 9. Redox 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
- A 12
- B 20
- C 23
- D 32
Answer & Solution
Correct Answer
(D) 32
Step-by-step Solution
Detailed explanation
Copper on reacting with conc. HNO \({ }_{3}\) gives copper nitrate. On strongly heating with copper nitrate, copper oxide is obtained. \(\therefore\) Equivalent weight of \(\mathrm{Cu}\) \(=\) Weight of copper \(\times\) Equivalent weight of oxygen \(=4 \times 8=32\)
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