Multiple Choice Question Answer XIII — task. Science CBSE, Class 10.

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1. Which of the following methods is used in the concentration of haematite ore ?

Hydraulic washing
Magnetic separation
Froth floatation process
None of these

2. Forth floatation method is used for the concentration of

Oxide ores
Halide ores
Sulphide ores
Sulphate ores

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