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प्रश्न
Answer the following question :
Name the process used for the enrichment of sulphide ore.
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उत्तर
Froth flotation process is used for the enrichment of sulphide ore.
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संबंधित प्रश्न
Explain with reason:
In the electrolytic reduction of alumina, the graphite anode is gradually consumed.
Give equation for the following conversion: Aluminium hydroxide to aluminium oxide.
Name oxide of one metal which is reduced by (give equation): Electrolytic reduction
Give the chemical name and formula of ‘cryolite’.
what is the function of cryolite in the extraction of aluminium, other than acting as a solvent for bauxite?
What is the type of bonding expected in a metallic chloride?
Name the following:
The compound formed by the reaction between calcium oxide and silica.
- A to F below relate to the source and extraction of either zinc or aluminium:
- Bauxite
- Coke
- Cryolite
- Froth floatation
- Sodium hydroxide solution
- Zinc blende
- Write down the three letters each from the above list which are relevant to
- Zinc
- Aluminium
- Fill in the blanks using the most appropriate words from A to F.
- The ore from which aluminium is extracted must first be treated with ………………. so that pure aluminium oxide can be obtained.
- Pure aluminium oxide is dissolved in ….. to make a conducting solution.
iii. Write the formula of cryolite.
Name two metallic oxides which cannot be reduced by carbon, carbon monoxide or hydrogen.
Give the equations for the reduction of copper oxide.
