Study the given flowchart and identify the processes P, Q, R and S carried out in the given sequence for separation of the mixture.
P | Q | R | S | |
A | Sublimation | Magnetic separation | Filtration | Evaporation |
B | Magnetic separation | Filtration | Sublimation | Evaporation |
C | Evaporation | Magnetic separation | Filtration | Sublimation |
D | Sublimation | Magnetic separation | Evaporation | Filtration |