Question

how can the boiling point of a liquid be raised , without adding any impurity??​

Answer 1

Answer:

By increasing the pressure,

Explanation:

By increasing the pressure, the liquid's boiling point can be increased without adding any soluble impurities. ... This will make it harder for gas molecules to overcome the externally pushing pressure, thus increasing the liquid's boiling point.

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Answer 2

Answer:

By increasing the pressure boiling point of a liquid can be raised.