Metallurgy - 01
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Q.1.   An element of an inorganic compound found in nature is known as : *
1 point
Q.2. Which one of the following is not true of metals ? *
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Q.3. Which ore is metalloid ? *
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Q.4. A chemical process of extracting a metal from its ore is known as : *
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Q.5. A mineral from which the metal is extracted economically is known as : *
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Q.6. An unwanted earthly material associated with tin ore as impurity is known as : *
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Q.7. The process of heating the ore strongly in excess of air so that the volatile impurities are removed and the ore is changed to oxide is known as *
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Q.8. Heating an ore in a limited supply of air or in the absence of air at a temperature just below its melting point is known as : *
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Q.9.  Smelting is carried out in : *
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Q.10.  The salt which is least likely to be found in minerals is : *
1 point
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