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Froth Floatation method is used for the concentration of_CorrectIncorrect
Heating of pyrites in air for oxidation of sulphur is called____CorrectIncorrect
Flux is used to remove____CorrectIncorrect
In Alumino -thermite process,aluminium is used as a___CorrectIncorrect
When Limestone is heated ,CO2 is given off.The metallurgical operation isCorrectIncorrect
The most abundant metal in the earth’s crust is___CorrectIncorrect
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____CorrectIncorrect
How is ore of aluminium concentrated?CorrectIncorrect