Identify the false statement : - Vidyadip

MCQ

Identify the false statement :

✓
The volume of a solution cannot be less than the sum of volumes of the pure solvent and
solute used to prepare the solution (binary solution of two liquids)
B
At constant $T$ and $P$, $\Delta G_{mix}$ will be necessarily negative for an ideal solution
C
An ideal binary solution $(p_A^o \ne p_B^o)$ cannot form an azeotropic mixture.
D
In binary solutions ideality is more of an exception rather than a rule.

✓

Answer

Correct option: A.

The volume of a solution cannot be less than the sum of volumes of the pure solvent and
solute used to prepare the solution (binary solution of two liquids)

a
$(1)$ as in case of negative deviation.

$(2)$ $\Delta G_{mix}$ is generally positive.

$(3)$ Ideal mixture follows Raoult's law at all compositions, so can not form a constant boiling mixture.

$(4)$ It is theoretically impossible to obtain an ideal solution.

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