You have the mixture of three liquids (A), (B) and (C). There is a large difference in the boiling points of (A) and rest of the two liquids i.e. (B) and (C). Boiling point of liquids (B) and (C) are quite close. Liquid [A] boils at a higher temperature than [B] and [C] and boiling point of (B) is lower than that of (C). How will you separate the components of the mixture. draw a diagram showing set up of the apparatus for the process.

You have the mixture of three liquids (A), (B) and (C). There is a lar

1.	You have the mixture of three liquids (A), (B) and (C). There is a large difference in the boiling points of (A) and rest of the two liquids i.e. (B) and (C). Boiling point of liquids (B) and (C) are quite close. Liquid [A] boils at a higher temperature than [B] and [C] and boiling point of (B) is lower than that of (C). How will you separate the components of the mixture. draw a diagram showing set up of the apparatus for the process.
Answer» Solution :(i) SUBJECT the mixture of three liquid to simple distillation. Both liquids (B) and (C) will distil since these are low boiling, leaving behind liquid (A) in the distillation flask. This can be recovered from the flask. (II) Now subject the mixture of liquids (B) and (C) obtained as distillate to farctional distillation. Liquid (B) will GET distilled since it has less boiling point. Lquid (C) will be LEFT in the distillation flask. In this manner, the separation can be DONE. The separation can be represented by a flow sheet diagram. For the apparatus of simple distillation, consult section 13.45 For the apparatus of fractional distillation, consult section 12.36.