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प्रश्न
Cassiterite is a copper ore.
पर्याय
Right
Wrong
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उत्तर
Cassiterite is a copper ore- Wrong
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संबंधित प्रश्न
Give the importance of the following for living beings:
Nitrogen
Give the importance of the following for living beings:
Carbon
Why are alkali metals kept in kerosene oil?
Explain the following terms:
(a) flux
Explain the following terms:
(c) slag
Name the methods used for purification?
`2AgNO_3`
...........................
what does it form with silica present in the ore?
Distinguish between electrolytic methods of reduction and refining.
Name a metal which forms a liquid alloy at ordinary temperature.
Explain the term of Metallurgy .
Explain with reason:
Why is powdered coke sprinkled on top of the electrolyte?
Match the columns.
| Group A | Group B |
| 1. ZnS | a) Copper Sulphide |
| 2. HgS | b) Bauxite |
| c) Cinnabar | |
| d) Zinc blend |
Write the molecular formulae of the following compound.
Stannic oxide
Draw a neat and labelled diagram for Froth Floatation Process.
State the reason for the addition of caustic alkali to bauxite ore during the purification of bauxite.
A process of extracting metals from aqueous solutions of their salts using suitable reducing agents is called ______
Explain the following term:
Metallurgy
After partial roasting, the sulphide of copper is reduced by ______.
Identify false statement regarding lithium aluminium hydride?
