Class 11Chemistry8-3.Organic Chemistry : Purification and characterizationPurification of Organic Compounds
MediumMatch List-$I$ with List-$II$.
List-$I$ (Purification technique) List-$II$ (Used to separate) $A$. Simple distillation $I$. Steam volatile compound $B$. Fractional distillation $II$. Two liquids with large difference in boiling points $C$. Steam distillation $III$. Liquid decomposing at its boiling point $D$. Distillation under reduced pressure $IV$. Two liquids with close boiling points
| List-$I$ (Purification technique) | List-$II$ (Used to separate) |
| $A$. Simple distillation | $I$. Steam volatile compound |
| $B$. Fractional distillation | $II$. Two liquids with large difference in boiling points |
| $C$. Steam distillation | $III$. Liquid decomposing at its boiling point |
| $D$. Distillation under reduced pressure | $IV$. Two liquids with close boiling points |
- A$A-II, B-III, C-I, D-IV$
- B$A-II, B-IV, C-I, D-III$
- C$A-II, B-IV, C-III, D-I$
- D$A-IV, B-III, C-II, D-I$
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State whether the following statements regarding fractional distillation are True or False:
$(i)$ The freezing of vapour of a liquid with a high boiling point takes place first.
$(ii)$ In the column,the more volatile liquid is present in a higher concentration in the vapour phase at higher levels.
$(iii)$ The condensed liquid flows down and provides heat to the vaporizing liquid.
$(iv)$ The liquid with the highest boiling point reaches the top of the column.
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$(iii)$ The condensed liquid flows down and provides heat to the vaporizing liquid.
$(iv)$ The liquid with the highest boiling point reaches the top of the column.
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