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प्रश्न
Name a non-metallic element which is a conductor of electricity.
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उत्तर
Carbon in the form of graphite
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संबंधित प्रश्न
Name the following:
A metal oxide that can be reduced by hydrogen.
Explain with reason:
In the electrolytic reduction of alumina, the graphite anode is gradually consumed.
Give equation for the following conversion: Aluminium to aluminium nitride.
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
What is the type of bonding expected in a metallic chloride?
Name the following :
A metal oxide that can be reduced by hydrogen
Write the observation for the following:
A paper dipped in potassium permanganate solution is put on the mouth of a test tube containing sulphur dioxide gas.
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?
