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Question 1 of 10
1. Question
Froth Floatation method is used for the concentration of_
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Question 2 of 10
2. Question
Heating of pyrites in air for oxidation of sulphur is called____
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Question 3 of 10
3. Question
Flux is used to remove____
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Question 4 of 10
4. Question
Calamine is____
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Question 5 of 10
5. Question
Cryolite is____
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Question 6 of 10
6. Question
In Alumino -thermite process,aluminium is used as a___
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Question 7 of 10
7. Question
When Limestone is heated ,CO2 is given off.The metallurgical operation is
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Question 8 of 10
8. Question
The most abundant metal in the earth’s crust is___
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Question 9 of 10
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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Question 10 of 10
10. Question
How is ore of aluminium concentrated?
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