Direction for: In each of the following questions a statement of Assertion is given followed by a corresponding statement of Reason just below it. Of the statements mark the correct answer as
Assertion: The water pouch of instant cold pack for treating athletic injuries breaks when squeezed and \[N{{H}_{4}}N{{O}_{3}}\] dissolves lowering the temperature. Reason: Addition of non-volatile solute into solvent result into depression of freezing point of the solvent.A) If both assertion and reason are true and the reason is the correct explanation of the assertion.
B) If both assertion and reason are true but the reason is not the correct explanation of the assertion.
C) If assertion is true statement but reason is false.
D) If both assertion and reason are false.
Correct Answer: A
Solution :
The water pouch of instant cold pack for treating athletic injuries breaks when squeezed and NH4N03 dissolves lowering the temperature because addition of non-volatile solute into solvent results into depression of freezing point of the solvent. So both are true and correct explanation.
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