Question

The temperature of the ice can be degrees below zero degree by mixing dash in it

Answer 1

Question :-

The temperature of the ice can be degrees below zero degree by mixing _____________ in it .

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Answer :-

The temperature of the ice can be degrees below zero degree by mixing impurities in it .

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Explanation :

When we add impurities to water, the freezing point of the water decreases and hence it does not melt easily.

This is because water expands on cooling to ice.

This fact is used in making kulphis .

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Answer 2

When we add impurities to water, the freezing point of the water decreases and hence it does not melt easily.