JEE Main Chemistry question

Chemistry General Principles and Processes of Isolation of Elements (Metallurgy)JEE Main

Not in JEE Main or NEET syllabus

In the froth flotation process for the purification of ores, the particles of ore float because [K CET 2004]

(A)Their surface is not easily wetted by waterCorrect
(B)They are light
(C)They are insoluble
(D)They bear electrostatic charge

Answer: (A)

Solution

In froth flotation, the sulphide ore particles are preferentially coated with a collector oil and are not wetted by water, so they attach to air bubbles and

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Question ID VK-145704