Question

Name the technique to separate
1 ) butter from curd
2) salt from sea water
3) camphor from salt

Answer 1

1) Centrifugation
2)Evaporation or Decantation
3)Sublimation....

Answer 2

Answer:

(1 ) Butter from curd-centrifugation.

(2) Salt from seawater- evaporation.

(3) Camphor from salt-sublimation.

Explanation:

(i) Butter can be separated from curd by the process of centrifugation. It is based on the principle that in this process the denser particles are forced to the bottom and the lighter particles stay at the top when rotated rapidly.

(ii) Salt can be separated from seawater by the process of evaporation. Seawater is evaporated. After the process of evaporation, salt is left behind.

(iii) Camphor can be separated from the salt by the process of sublimation. This mixture is heated and camphor being the volatile component is separated in the form of vapors.