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VK JAISWAL ENGLISH-METALLURGY-One OR MORE ANSWERS IS/ ARE CORRECT
- Which of the following metal (s) is /are commercially extracted by sel...
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- Which of the following process makes the ore porous ?
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- Which of the following ores is / are oxide ore (s) ?
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- Roasting of copper pyrites is done:
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- Which of the following is a correct statement ?
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- In which of the following pairs, both the minerals are oxides ?
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- Which of the following mineral does not contain sodium ?
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- Which of the following pair consists of ore of the same metal ?
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- The process by which ligher earthly particles are made free from heavi...
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- Roasting is carried out to :
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- The chemical treatment of the ore for concentration is done in the cas...
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- Froth floatation :
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- Which of the following reaction (s) occur during calcination ?
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- Amphoteric nature of aluminium is employed in which of the following p...
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- Which of the following is true for calcination of metal ore ?
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- The difference (s) between roasting and calcination is / are :
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- The etraction of metals from oxide ores involves
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- Metals which can be extracted by smelting process are :
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- Of the following reduction processes, correct processes are :
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- In the extraction of aluminium metal, one of the process is summarised...
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