Identify the type of separation for each of the following as

Iron and sulphur mixture with out heating    – (p),

Iron and sulphur mixture with heating          – (q),

Blood                                                             – (r),

Components of ink                                        – (s),

i) Evaporation                                                        ii) Centrifugation

iii) Magnetisation or dissolving in ${\text{CS}}_2$               iv) Any chemical method like chemical displacement