Difference in density is the basis of

Options

(a) ultrafiltration
(b) molecular sieving
(c) gravity separation
(d) molecular attraction

Correct Answer:

gravity separation

Explanation:

Gravity separation or hydraulic washing is the process of separating the lighter gangue particles from the heavier ore particles by washing in a current of water. This is also called Levigation, and is generally used for oxide ores and carbonate ores.this method is based on the difference in densities of the ore particles and impurities.