Question

Fractional distillation is used to separate liquids which differ in their boiling points by?

A
010oC
B
1020oC
C
2040oC
D
4080oC

Solution

The correct options are A $$0-10^o$$C B $$10-20^o$$C Fractional Distillation is a technique used to separate miscible liquids for which the boiling point difference between the two liquids is less than 25K or 25$$^oC$$ (ref.- NCERT Cl-9).Option C and D may have the boiling point difference of more than 25$$^oC$$. Hence, Option A and B both can be the correct range.Chemistry

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