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NARAYNA-METALLURGY-EXERCISE - III
- Sulphide ores of metals are usually concentrated by both floatation pr...
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- Among the metals Cr,Fe,Mn,Ti,Ba, and Mg, the one that cannot be obtain...
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- Which of the following is/are manufactured by the electrolysis of thei...
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- The method not used in metallurgy to refine impure metal is :
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- Auto-reduction process is used for the extraction of :
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- The chemical reagent used for leaching of gold and silver ores is
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- Blister copper is
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- Which of the following is not correct ?
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- One of the consituents of German silver is
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- Corundum is
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- Purest form of iron is
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- Flux used in the smelting of copper arc is:
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- Which metal is refined by Mond's process?
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- The form of iron obtained from blast furnace is:
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- Aluminium is extracted from Alumina (Al(2)O3 ) by electrolysis of a mo...
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- In the exteraction of copper from its sulphide ore, the metal is fanal...
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- Identify the alloy containing a non metal as a constituent in it
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- Which ore of the following is a mineral of iron ?
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- Which one of the following is not a sulphide ore ?
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- High purity copper is obtained by
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