question_answer

Match column I (method of concentration) with column II (principle involved) and choose the appropriate option from the codes given below.

Column I	Column II
P. Hydraulic washing	(i) Difference in the wetting properties of ore and gangue particles
Q Froth floatation process	(ii) Difference in magnetic properties of ore and gangue particles
R. Magnetic separation	(iii) Difference in the densities of ore and gangue particles
S. Baeyer?s process	(iv) Difference in chemical properties of ore and gangue particles

A)  P-(i), Q-(iii), R-(ii), S-(iv)

B)  P-(iii), Q-(i), R-(ii), S-(iv)

C)  P-(ii), Q-(iii), R-(iv), S-(i)

D)  P-(iv), Q-(ii), R-(iii), S-(i)