and the other is labelled as Reason (R) Assertion : At , the density of a solution of [atomic masses of and are 39 & . The solution is cooled to . The molality of the solution will remain unchanged. Reason (R): The molality of a solution does not change with temperature as mass remains unaffected with temperature. In the light of the above statements, choose the correct answer from the options given below: Both and (R) are true and (R) is the correct explanation of and (R) are true but (R) is not the correct explanation of is true but (R) is false is false but (R) is true

Both