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JEE Main Chemistry question

ChemistryGeneral Principles and Processes of Isolation of Elements (Metallurgy)JEE Main

Not in JEE Main or NEET syllabus

How many of the following are methods to concentrate ores?

Gravity separation, magnetic separation, chromatography, froth floatation process, polling

Answer: 3

Solution

Gravity separation, magnetic separation and froth flotation are all genuine ore-concentration methods, giving 3. Chromatography is an

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Question ID VK-145597