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VGS PUBLICATION-BRILLIANT-PRINCIPLES OF METALLURGY-EXERCISE
- furnace has both furnace and hearth separated.
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- furnace contains a big chamber for both fuel and ore.
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- If the impurity (gangue) is acidic substance, then the flux used is
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- means simply getting rid of unwanted rocky material from ore.
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- The metals which do not burn oxidise even on surface are
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- During corrosion process takes place.
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- Bistler copper is purified by
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- The substance added to remove the impurity is
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- The formula of Haematite
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- Most abundant metal in the earth's crust is
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- Metals occur in the native form because of their
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- Correct statement among the following is
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- Calcination is a pyrochemical process in which the ore is heated in th...
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- Roasting is carried out in
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- Most abundant element in the earth's crust by weight is
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- The substance added to remove the impurity is
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- Which of the following slag is formed between CaO and SiO2?
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- Which of the pairs of ores are carbonate ores ?
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- Method of extraction of metal from purified ore depends on
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- More active metals are not obtained from their ores by simple reductio...
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