An ore sample of galena (PbS) is contaminated with zinc blende (Zn | Filo
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Class 12

Chemistry

Metallurgy

General Principles and Processes of Isolation of Elements

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An ore sample of galena is contaminated with zinc blende . Name one chemical which can be used to concentrate galena selectively by froth floatation method.

Solution: (sodium cyanide) is used as a depressant to concentrate galena selectively by froth floatation method.
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general principles and processes of isolation of elements
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