Advertisements
Advertisements
Question
How will you convert the following:
Zinc blende to Zinc metal
Advertisements
Solution
Zinc blende to Zinc metal
ZnS on roasting gives ZnO which on reduction gives zinc metal.
\[\ce{2 ZnS + 3O2 -> 2 ZnO + 2 SO2}\]
\[\ce{ZnO + C->[coke, 1673K] Zn + CO}\]
APPEARS IN
RELATED QUESTIONS
Is it true that under certain conditions, Mg can reduce SiO2 and Si can reduce MgO? What are those conditions?
In the extraction of copper from its sulphide ore, the metal is formed by the reduction of \[\ce{Cu2O}\] with ______.
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?
How is copper extracted from low grade copper ores?
Write down the reactions taking place in Blast furnace related to the metallurgy of iron in the temperature range 500-800 K.
Explain the following:
\[\ce{CO2}\] is a better reducing agent below 710 K whereas \[\ce{CO}\] is a better reducing agent above 710 K.
Explain the following:
Generally sulphide ores are converted into oxides before reduction.
Explain the following:
Silica is added to the sulphide ore of copper in the reverberatory furnace.
Assertion: For the extraction of iron, haematite ore is used.
Reason: Haematite is a carbonate ore of iron.
