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- Question 1 of 10
1. Question
Froth Floatation method is used for the concentration of_
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2. Question
Heating of pyrites in air for oxidation of sulphur is called____
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3. Question
Flux is used to remove____
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4. Question
Calamine is____
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5. Question
Cryolite is____
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6. Question
In Alumino -thermite process,aluminium is used as a___
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7. Question
When Limestone is heated ,CO2 is given off.The metallurgical operation is
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8. Question
The most abundant metal in the earth’s crust is___
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9. Question
Name the metal that is purified by placing the impure metal on sloping hearth of a reverberatory furnace and heating that above its melting in absense of air____
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10. Question
How is ore of aluminium concentrated?
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