Q.

Statement 1: The water pouch of instant cold pack for treating athletic injuries breaks when squeezed and NH4NO3 dissolves in water to lower the temperature.Statement 2: Addition of non-volatile solute into solvent results into depression of freezing point of the solvent.

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Both statements 1 and 2 are correct

Both statements 1 and 2 are incorrect

Statement 1 is correct statement 2 is incorrect

Statement 1 is incorrect statement 2 is correct

answer is A.

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Detailed Solution

The water pouch of instant cold pack for treating athletic injuries breaks when squeezed and NH4NO3 dissolves in water to lower the temperature. This is because addition of non-volatile solute into solvent results into depression of freezing point of the solvent.

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