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MBD PUBLICATION-GENERAL PRINCIPLES OF ISOLATION OF ELEMENTS-QUESTION BANK
- The main function of roasting is :
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- A and B are two allotropes of an elemt . One gram of B in :
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- An element A dissolves both in acid and alkali. It is an example of :
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- In metallurgy , flux is a substance used to convert :
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- The metallurgical process in which a metal is obtained in a fused stat...
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- Which pair of element cannot form an alloy :
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- Which metal is extracted by a reduction process :
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- Alloys of which metal are light and strong and used in the manufacture...
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- Alloy is an example of :
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- Gold when dissolved in aqua-regia gives :
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- Ferric oxide in blast furnance is reduced by :
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- Electric furnaces are lined with magnesia because :
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- High purity copper metal is obtained by :
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- Which element is purified by zone refining ?
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- Gold is found usually near ……. Minerals.
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- CO is used in the metallurgy of :
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- Chalcogens are :
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- wulfenite ( a yellow - red mineral ) having waxy lusture occurs in lea...
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- Slag coming out at the bottom of a blast furance during extraction of ...
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- Which element occurs in free state in nature ?
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