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Home Questions XCHU8USAVZ
Target Exam

CUET

Subject

Chemistry

Chapter

Inorganic: General Principles and Processes of Isolation of Elements

Question:

Which one of the following ore is not concentrated by froth floatation process?

Options:

Copper pyrites

Galena

Pyrolusite

Zinc blende

Correct Answer:

Pyrolusite

Explanation:

Generally, sulphide ores are concentrated by "Froth floatation" and apart from pyrolusite (MnO2​), all are sulphide ores. So, pyrolusite is not concentrated by froth floatation process.

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