An ore that is concentrated by froth flotation method can be converted to its oxide form by the process of _________.

calcination

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roasting

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smelting

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gravity separation

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Solution

The correct option is B roasting
Froth flotation process is used for sulphide ores. To convert sulphide ores to its oxide roasting is used. During roasting, the sulfide is converted to an oxide, and sulfur is released as sulfur dioxide.

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An ore is concentrated by froth flotation method. That concentrated ore will be converted to its oxide form by ___ process.

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