Q. Pyrolusite, Braunite, Psilomelane, Rhodochrosite are the ores of which among the following metals?
Answer: Manganese
Notes: Pyrolusite, Braunite, Psilomelane, and Rhodochrosite are all ores of Manganese. Pyrolusite is one of the most important ores due to its high manganese content. Braunite, although a significant ore, its manganese content is less than Pyrolusite. Psilomelane and Rhodochrosite also contribute as minor ores.

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