Assertion – In froth flotation process sodium ethyl xanthate is used as collector.

Reason: Sulphide ores are water soluble.

Both assertion and reason are correct and the reason is the correct explanation for the assertion.

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Both assertion and reason are correct but the reason is not the correct explanation for the assertion.

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Assertion is correct but the reason is wrong

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Assertion is incorrect but the reason is correct

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Solution

The correct option is C
Assertion is correct but the reason is wrong

Collectors: These are the substances help in attachment of the ore particles to air bubbles in froth. Thus ores are separated from impurities. As sulphide ores are insoluble, collectors will attach to the sulphide ores to the air bubbles and help float the ore particles to the surface; hence ores can easily be separated.

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