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Assertion : Molality is perferred to mol...

Assertion : Molality is perferred to molarity for expression the concentration of the solution.
Reason : Molality can be determined more easily than molarity.

A

If both assertion are reason are correct and reason is correct explanation for assertion.

B

If both assertion and reason are corrct but reason is not correct explanation for assertion.

C

If assertion is corrct but reason is incorrect.

D

If assertion and reason both are incrrect.

Text Solution

Verified by Experts

The correct Answer is:
c
Correct Reason. Molality does not change with temperature while molarity changes.
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Knowledge Check

  • Assertion: For calculating the molality or the mole fraction of solute, if the molarity is known, it is necessary to know the density of the solution. Reason: Molality, molarity and the mole fraction of solute can be calculated from the weight percentage and the density of the solution.

    A
    (a)If both assertion and reason are true and the reason is the correct explanation of the assertion.
    B
    (b)If both assertion and reason are true and the reason is not the correct explanation of the assertion.
    C
    (c )If the assertion is true but reason is false.
    D
    (d)If assertion is false but reason is true.

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