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Q.

Which of the following are methods of concentration of ore of metals?

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a

Gravity separation

b

Magnetic separation

c

Froth floatation process

d

Smelting

answer is A, B, C.

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Detailed Solution

Gravity separation, Froth floatation process and Magnetic separation are methods of concentration of ore of metals.

Metal concentration does not involve smelting. Because smelting is the process of extracting metal while it is still molten using any reducing chemical and flux.

Hence the option A, B, C is correct.

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Which of the following are methods of concentration of ore of metals?