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प्रश्न
How will you convert the following:
Zinc blende to Zinc metal
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उत्तर
Zinc blende to Zinc metal
ZnS on roasting gives ZnO which on reduction gives zinc metal.
\[\ce{2 ZnS + 3O2 -> 2 ZnO + 2 SO2}\]
\[\ce{ZnO + C->[coke, 1673K] Zn + CO}\]
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संबंधित प्रश्न
How is ‘cast iron’ different from ‘pig iron’?
Write down the reactions taking place in different zones in the blast furnace during the extraction of iron.
The impurity that is added externally to remove the impurity already present in the ore is known as ____________.
In the metallurgy of aluminium ______.
Wrought iron is the purest form of iron. Write a reaction used for the preparation of wrought iron from cast iron. How can the impurities of sulphur, silicon and phosphorus be removed from cast iron?
Explain the following:
Generally sulphide ores are converted into oxides before reduction.
Explain the following:
Carbon and hydrogen are not used as reducing agents at high temperatures.
Heating of MgCl2 6H2O in absence of HCl gives ______.
Assertion: For the extraction of iron, haematite ore is used.
Reason: Haematite is a carbonate ore of iron.
\[\ce{Au + CN^- + H2O + O2 -> [Au(CN)2]^- + OH^-}\]
The number of CN− ions involved in the balanced equation is ______.
