Which of the following ores are concentrated by cyanide of group 1st element?

Sphalerite

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Malachite

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Calamine

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Siderite

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Solution

The correct option is A Sphalerite
Answer: (a)

Cyanide acts as a depressant and is therefore used to concentrate the galena-sphalerite ore through the froth floatation process. Hence, option (a) is the correct answer.

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1^{s t}

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