Explain the following:
1.partial roasting of sulphide ore is done in the metallurgy of copper.
2. Carbon and hydrogen are used as reducing agent at high temperature.
3.vapour phases refining is used for the purification of Zr
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1) Partial roasting of sulphide ore is carried in order to convert it to the oxide form. The oxide form then reduces the remaining sulphide ore to the metallic form
2) Although carbon and hydrogen are better reducing agents but they are not used to reduce metallic oxides at high temperatures. ... It is because at high temperature carbon and hydrogen react with metals to form carbides and hydrides respectively.
3) Vapour phase refining is used for the purification of Zr. ... This process is called as Van arkel process.in this method impure zirconium is heated with iodine.
Explanation:
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