Question

Consider the following statements :
S1 : Hydraulic washing is not preferable if the ore and the impurities have similar specific gravities.
S2 : Magnetic separation cannot be used if the ore is non-magnetic in nature.
S3 : Collectors have hydrophobic and hydrophilic part they occupies the air water interface and entraps the particles.

The correct statement(s) among the ones given is/are

• A. $S_1$ and $S_2$ Only
• B. $S_2$ Only
• C. $S_2$ and $S_3$ Only
• D. $S_1,S_2$ and $S_3$

Answer 1

The correct option is A $S_1$ and $S_2$ Only

Magnetic separation can be used if either the ore or impurity is magnetic in nature.