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प्रश्न
The chemical formula of zinc blend is _______.
पर्याय
ZnSO4
ZnS
ZnCO3
ZnO
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उत्तर
The chemical formula of zinc blend is ZnS.
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संबंधित प्रश्न
Define the term ‘metallurgy’. State the processes involved in metallurgy ?
Explain the following terms:
(a) flux
Explain the following term:
Gangue
Explain the following terms:
(c) slag
On which factors does the purification of metals depend?
`Cu (OH)2`
................................
`ZnCO_3`
..............................
`2AgNO_3`
...........................
`2Cu_2O +Cu_2S`
......................
Give the ionization reactions of electrolyte used in Hall’s process. write the reaction at the cathode and the anode. Why the anode has to be replaced in this process?
state the reactions at the two electrodes ?
Distinguish between electrolytic methods of reduction and refining.
What is magnalium? Name the main elements present in it? Write its one use ?
Aluminium is extracted from its chief ore, bauxite. The ore is first purified and then the metal is extracted from it by electrolytic reduction.
Write three balanced equations for the purification of bauxite.
Why does iron or zinc not occur free in nature?
Write the molecular formulae of the following compound.
Ferrous tungstate
Identify the following method of concentration of ores and explain briefly.
Limestone is used as a flux in the extraction of ______.
Which of following metals occurs in native state?
After partial roasting, the sulphide of copper is reduced by ______.
