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Two miscible liquids having different boiling points can be separated by:
(A) Sublimation
(B) evaporation
(C) fractional distillation
(D) loading

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Last updated date: 13th Jun 2024
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Answer
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Hint: As we know that the boiling point is the point when the substance starts to boil. Suppose we take a solution of ethanol and water then we cannot know which is the ethanol and which is water in that case we will provide temperature to the solution.

Complete step by step answer:
The miscible liquids are those which are completely mixed with each other and form a homogeneous solution but the liquids have sufficient boiling point difference.
Let’s see the options
In option (A), sublimation is the process of change of state of any substance. When any substance is directly converted from solid state to vapour state is known as sublimation such as camphor.
In option (B), evaporation term is used for the conversion of liquid into vapour state.
In option (C), the term fractional distillation is a method to separate two completely mixed liquids having temperature difference more than \[26K\]. In this method the liquid which has low boiling point vaporises first and is collected into a condenser where the vapour is condensed into original liquid.

Therefore, the correct option is option (C).

Note:
The azeotropic mixtures cannot be separated into their constituents by fractional distillation.