1.

A sample of water labelled A boils at 100^(@)C. A sample of water labelled B boils at 102^(@)C. Which sample of water will not freeze at 0^(@)C ? Why ?

Answer»

Solution :The sample of water LABELLED B will not FREEZE at `0^(@)C`.
The boiling point of pure water at 1 ATM is `100^(@)C`.
The sample of water labelled B BOILS at `102^(@)C`. It means the water contains IMPURITIES.


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