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Assertion: For calculating the molality ...

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.

Text Solution

Verified by Experts

The correct Answer is:
b
Molality and mole fraction are mass dependent tems while molarity is volume dependent term.
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