Methods used for purification of organic compounds are based on:

  • A
    neither on nature of compound nor on the impurity present.
  • B
    nature of compound only.
  • C
    nature of compound and presence of impurity.
  • D
    presence of impurity only.

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Similar Questions

Three organic compounds $A$,$B$ and $C$ were allowed to run in thin layer chromatography using hexane and gave the following result (see figure). The $R_f$ value of the most polar compound is $............\, \times 10^{-2}$

Fill in the Blanks :
$(1)$ The steam distillation of $.......$ liquid is done and it is boiled at $.........$ temperature.
$(2)$ $.........$ and $........$ used to reduce pressure in distillation under reduced pressure.
$(3)$ In steam distillation the equation of total vapour pressure is $P = p_1 + p_2$ where $p_1$ is more than $...........$
$(4)$ $.........$ apparatus is used in differential extraction.

Consider the following table$-$
Column-$I$ Column-$II$
$(A).$ Best and latest technique for isolation,purification and separation of organic compounds $(i).$ Chromatography
$(B).$ In Lassaigne's test for $N$ $(ii).$ Vacuum distillation (distillation under reduced pressure)
$(C).$ In Lassaigne's test for $S$ $(iii).$ Violet coloured complex is formed
$(D).$ Aniline is purified from water by $(iv).$ Prussian blue coloured complex is formed
$(E).$ Glycerol is purified from spent lye $(v).$ Steam distillation

The correct match is $-$

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 can be separated by the steam distillation method?

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