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प्रश्न
Name the following:
A metal oxide that can be reduced by hydrogen.
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उत्तर
PbO or CuO
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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 oxide of one metal which is reduced by (give equation): Electrolytic reduction
Name oxide of one metal which is reduced by (give equation): Reduction with heat alone
Name a non-metallic element which has a metallic lustre
Name a non-metallic element which is a liquid at ordinary temperatures
Name the following:
The compound formed by the reaction between calcium oxide and silica.
Answer the following question with respect by hydrogen : Identify the components of the electrolyte other than pure alumina and the role played by each.
Steel is an alloy of iron and ______.
Give the equation for the reduction of Zinc 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?
