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प्रश्न
Write a balanced equation for the reduction of copper (ll) oxide by hydrogen.
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उत्तर
\[\ce{\underset{(black)}{CuO} + H2 ->[\Delta]\underset{(Pink/brown)}{Cu} + H2O}\]
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संबंधित प्रश्न
Complete the following by selecting the correct option from the choices given:
The metal whose oxide, which is amphoteric, is reduced to metal by carbon reduction ____________. (Fe/Mg/Pb/Al)
Name the compound added to pure alumina to lower the fusion temperature during the electrolytic reduction of alumina.
Explain with reason:
In the electrolytic reduction of alumina, the graphite anode is gradually consumed.
Write a balanced chemical equation for each of the following reactions :
(i) Reduction of copper (II) oxide by hydrogen
For the reaction of a metal oxide. Suggest a reducing agent other than carbon
Write balanced equation for the following reaction:
Reduction of iron (III) oxide by carbon monoxide.
Answer the following question with respect by hydrogen :
Explain why powdered coke is sprinkled over than electrolytic mixture.
Give the equations for the reduction of copper oxide.
Give the equations for the reduction of Lead (II) oxide.
The following sketch represents the electroplating of an Iron cup with Nickel metal.
Study the diagram and answer the following questions:
- During electroplating, the iron cup is placed at the cathode. Why?
- Name the ion that must be present in the electrolyte.
- State one condition that is necessary to ensure that the deposit is smooth, firm and even.
- Write the reaction taking place at the cathode.
- What change would you observe at the anode?
