Question

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Answer 1

Answer:

option b)Non-wettability of the mineral particles in water. (It is the correct answer).

Explanation:

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Answer 2

(b) Enhance non-wettability of the mineral particles in water.

• Froth floatation method is used for removing gangue from sulphide ores.

• In this process, a suspension of the powdered ore is made with water.

• Collectors and froth stabilisers are added to it.

• Collectors (e.g., pine oils, fatty acids, xanthates, etc.) enhance non-wettability of the mineral particles and froth stabilisers (e.g., cresols, aniline) stabilise the froth.