The best and latest technique for isolation, purification and separation of organic compounds is: a) Crystallisation b) Distillation c) Sublimation d) Chromatography

Assertion : Chromatography is the best and latest method of purification/separation of organic compounds. Reason : In all forms of chromatography there is a stationary phase and mobile phase.

Suggest the suitable technique for separation of organic compounds given in the data. Aniline - water mixture

The aqueous solution of a nitrogen and chlorine containing organic compound (A) is acidic to litmus. (A) on treatment with aqueous NaOH, it gives a compound (B) containing nitrogen, but not chlorine. Compound (B) on treatment with C_6 H_5SO_2 Cl in the presence of NaOH gives an insoluble product (C) C13H13NO2 S. Give the structures of (A) and (B).

Uses of some organic compounds are given below. Choose the appropriate compound from the bracket which is suitable to each use. (Teflon, Ester, Ethanoic acid, Ethanol, Power alcohol) a) Uses as a solvent and in the production of different organic compounds. b) Uses in the production of artificial perfumes. c) Used as a fuel in automobiles d) Used in making non-stick cooking vesseles.

Various methods for the purification of organic com pounds are based on the nature of the compound and impurity present in it. Explain the principle in volved in the following methods for the purification a) Distillation, b) Steam distillation

Various methods for the purification of organic compounds are based on the nature of the compound and impurity present in it. Explain the principle involved in the following methods for the purification. Distillation

Various methods for the purification of organic compounds are based on the nature of the compound and impurity present in it. Explain the principle involved in the following methods for the purification. Steam distillation