Suggest a method for the purification of camphor contaminated with salt.

At what temperature and pressure does a liquid vaporize in steam distillation?

Which are the types of chromatography?

State True or False for the following statements regarding steam distillation:
$(i)$ The liquid is boiled at a temperature lower than its normal boiling point.
$(ii)$ The vapour pressure of the liquid is less than the atmospheric pressure.
$(iii)$ The sum of the vapour pressure of the liquid and the vapour pressure of water is equal to the atmospheric pressure.
$(iv)$ The mixture of organic liquid and water is obtained as the distillate.
$(v)$ The condensation of the mixture of water vapour and organic liquid vapour takes place.

Which of the following compounds is used as an adsorbent in column chromatography?

Explain differential extraction.