Class 11Chemistry8-3.Organic Chemistry : Purification and characterizationPurification of Organic Compounds
DifficultThe correct match between items of List-$I$ and List-$II$ is
List-$I$ List-$II$ $A$. Coloured impurity $(p)$. Steam distillation $B$. Mixture of $o-$nitrophenol and $p-$nitrophenol $(q)$. Fractional distillation $C$. Crude naphtha $(r)$. Charcoal treatment $D$. Mixture of glycerol and sugars $(s)$. Distillation under reduced pressure
| List-$I$ | List-$II$ |
| $A$. Coloured impurity | $(p)$. Steam distillation |
| $B$. Mixture of $o-$nitrophenol and $p-$nitrophenol | $(q)$. Fractional distillation |
| $C$. Crude naphtha | $(r)$. Charcoal treatment |
| $D$. Mixture of glycerol and sugars | $(s)$. Distillation under reduced pressure |
- A$A-r, B-p, C-q, D-s$
- B$A-p, B-s, C-r, D-q$
- C$A-r, B-p, C-s, D-q$
- D$A-r, B-q, C-p, D-s$
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$2$. There are more than .......... plates in the columns of fractional distillation.
$3$. Fractional distillation is used for the separation of liquids with a .......... difference in boiling points,and simple distillation is used for the separation of liquids with a .......... difference in boiling points.
$4$. The .......... technique is applied to separate different fractions of crude oil in petroleum.
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