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Assertion (A): The sum of mole fractions...

Assertion (A): The sum of mole fractions of all the component of a solution is unity.
Reason (R ): The mole fraction is a temperature dependent quantity.

A

If both `(A)` and `(R )` are correct, and `(R )` is the correct explanation of `(A)`.

B

If both `(A)` and `(R )` are correct, but `(R )` is not the correct explanation of `(A)`.

C

If `(A)` is correct, but `(R )` is incorrect.

D

If `(A)` is incorrect, but `(R )` is correct.

Text Solution

Verified by Experts

The correct Answer is:
C
The sum of mole fraction is always unity and it is not temperature dependent.
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Knowledge Check

  • The sum of the mole fraction of the components of a solution is

    A
    `0`
    B
    1
    C
    2
    D
    4

  • Sum of mole fractions of the two components of a solution is

    A
    less than one
    B
    equal to one
    C
    more than one
    D
    not fixed

  • Assertion: The sum of mol fractions of all the components of a solution is unity. Reason: Mole fraction is temperature dependent mode of concentrations.

    A
    Both A and R are true and R is the correct explanation of A
    B
    Both A and R are true but R is not a correct explanation of A
    C
    A is true but R is false
    D
    A is false but R is true

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    The units of mole fraction of a compound in solution are-

    Mole fraction of the two compounds of a solution have a sum of

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    If mole fraction of the solvent in a solution decreases than:

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