Question 2
Name the technique to separate (a) butter from curd, (b) salt from sea-water, (c) camphor from salt

1) By using centrifugation method, butter can be separated from curd.
2) By using evaporation method, salt from seawater can be separated. Water vaporizes on evaporation leaving behind the salt.
3) Camphor from salt can be separated by sublimation method. On sublimation, camphor will get converted into vapour leaving behind the salt.