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VGS PUBLICATION-BRILLIANT-PRINCIPLES OF METALLURGY-EXERCISE
- 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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- ‘Na' metal is prepared from fused NaCl by
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- Which combination is wrong for the extraction of sodium metal from fus...
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- Which of the following step is not involved in the extraction of Ag ?
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- Which of the following impurities are present in a metal after reducti...
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- The selection of process of purification of a metal depends on:
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- Liquation is used for purification of metal if:
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- Chemically rust is a
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- When an Iron object is painted, the process of corrosion is reduced du...
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- The furnaces in which there is no direct contact between the hearth an...
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- Active metals are not extracted by the electrolysis or aqueous electro...
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- Which of the following is wrong?
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