Question

prove that boiling point of water is not equal to 100 degree Celsius
And freezing point of water is not equal to 0 degree Celsius
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Answer 1

Answer:

it will be nonsense if we do that

Answer 2

Boiling and freezing point of water is 100°C and 0°C respectively.

But presence of impurities may increase its boiling point and decrease it's freezing point but this change is negligible.

Only significant amount of impurities alter the boiling and freezing points of water.