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प्रश्न
For the reaction of a metal oxide. Suggest a reducing agent other than carbon
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उत्तर
Reducing agents for the reaction of a metal oxide: Aluminium, carbon monoxide and hydrogen
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संबंधित प्रश्न
An element L consists of molecules.
When L is heated with iron metal, it forms a compound FeL. What chemical term would you use to describe the change undergone by L?
Give reason for the following:
Carbon anodes are used in the electrolytic extraction of aluminium.
Name oxide of one metal which is reduced by (give equation): Electrolytic reduction
Give the chemical name and formula of 'cryolite'
Name a non-metallic element which forms acidic and neutral oxides
Name a non-metallic element which is a conductor of electricity.
With reference to the reduction of copper (II) oxide , iron (II) oxide, lead (II) oxide and magnesium oxide; place the oxides in order of increasing ease of reduction.[i.e. first write the oxide that is most difficult to reduce and at last, the oxide, that is most easily reduced.]
Answer the following question :
Name the process used for the enrichment of sulphide ore.
Give the equation for the reduction of Iron (III) 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?
