Which of the following statements is correct about the role of substances added in the froth floatation process?

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Collectors enhance the non-wettability of the mineral particles.

Collectors enhance the wettability of gangue particles

By using depressants in the process two sulphide ores can be separated

Froth stabilizers decrease wettability of gangue.

answer is A.

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Detailed Solution

i) Collector enhances the non-wettability of the mineral particlesii) Depresants suppress one type of sulphide are particles to pass into froths

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