Home › CBSE Class 12 (Science) › Chemistry › General Principles and Processes of Isolation of Elements › Which concentration method uses air bubbles to l…
Which concentration method uses air bubbles to lift water-repelling mineral grains?
AFroth flotation
BAcid leaching
CGravity washing
DMagnetic separation
Answer & Solution
Correct answer: A. Froth flotation
Hydrophobic mineral particles stick to rising air bubbles and are carried into the froth, while wetted gangue sinks.
Related questions
Roasting a sulfide ore until nearly all sulfur is removed gives which result?Magnetic roasting turns non-magnetic Fe2O3 into which magnetic oxide?Which roasting type heats ore in excess air and is the most common?Materials added in smelting to bind unwanted impurities are called what?Which substance is added to copper matte smelting to form a separate iron slag?In copper matte smelting, which molten layer floats on top?In electrolytic refining of copper, selenium and tellurium settle as what?Blister copper gets its name from the escape of which gas as it cools?