Match the reagents in Group 1 with their properties in Group...

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Match the reagents in Group 1 with their properties in Group 2, in the context of froth floatation.

Group 1 Group 2

P. Frother 1. Alters the chemical nature of mineral surfaces so that they become hydrophobic due to action of collector

Q. Activator 2. Absorbs on air-water interface and reduces surface tension to stabilise the bubble

R. Regulator 3. Increases the selectivity of floatation by rendering certain mineral hydrophilic

S. Depressant 4. Modifies the action of collector either by intensifying or reducing its water repellant effect

A. P-2, Q-1, R-4, S-3

B. P-1, Q-3, R-2, S-4

C. P-4, Q-2, R-3, S-1

D. P-3, Q-2, R-4, S-1

Answer: Option D

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Group 1	Group 2
P. Frother	1. Alters the chemical nature of mineral surfaces so that they become hydrophobic due to action of collector
Q. Activator	2. Absorbs on air-water interface and reduces surface tension to stabilise the bubble
R. Regulator	3. Increases the selectivity of floatation by rendering certain mineral hydrophilic
S. Depressant	4. Modifies the action of collector either by intensifying or reducing its water repellant effect