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Roasting is carried out in case of

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Galena

Iron pyrites

Copper glance

All

answer is D.

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Detailed Solution

The roasting is subjected to sulphides to convert them into their oxides prior to reduction by carbon.

Now, Galena whose formula is $PbS$ takes part in roasting.

Iron pyrites $CuFE S 2$ also take part in roasting.

Copper glance $Cu 2 S$ also takes part in roasting.

Hence, option(D) is the answer.

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