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प्रश्न
Cassiterite is a copper ore.
विकल्प
Right
Wrong
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उत्तर
Cassiterite is a copper ore- Wrong
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संबंधित प्रश्न
Name:
(a) the processes involved in
concentration :-
Name:
(b) two metallic oxides which cannot be reduced by carbon, carbon monoxide or hydrogen
What do you observe when hydrogen is passed over heated copper oxide?
On which factors does the purification of metals depend?
`2Pb(NO3)_2`
.........................
Where are the cathode and anode in the electrolytic cell? Name the material used for these?
what does it form with silica present in the ore?
How is it removed?
Which metal is used for:
lithographic plates for printing
Explain with reason:
Why is powdered coke sprinkled on top of the electrolyte?
A compound that is added to lower the fusion temperature of the electrolytic bath in the extraction of aluminium.
Name the following:
Name an allotrope of a non-metal that allows electricity to pass through it.
In Wilfley table method to separate particles of gangue _______ method is used.
Write the molecular formulae of the following compound.
Stannic oxide
Complete flow chart given below.
State the reason for the addition of caustic alkali to bauxite ore during the purification of bauxite.
Zirconium is refined by ____________.
A process of extracting metals from aqueous solutions of their salts using suitable reducing agents is called ______
Explain the following term:
Metallurgy
Identify false statement regarding lithium aluminium hydride?
