MCQ
Which of the following conditions is not correct for ideal solution:
- ANo change in volume on mixing
- BNo change in enthalpy on mixing
- CIt obeys Raoults law
- DLonisation of solute should occurs to a small extent
Explanation:
In an ideal solution, no change in volume on mixing, no change in enthalpy on mixing and it obeys Raoults law but ionisation of solute should not occur to a small extent.
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(Equilibrium constants for the reaction in water and benzene are $K_{Water}$ $K_{Benzene}$)


| $I$ | $II$ | |
| $[Cr(H_2O)_6]^{+2}$ | $[Cr(H_2O)_6]^{+3}$ | $(a)$ |
| $[Fe(H_2O)_6]^{+3}$ | $[Fe(CN)_6]^{-3}$ | $(b)$ |
| $[Fe(CN)_6]^{+3}$ | $[Ru(CN)_6]^{-3}$ | $(c)$ |
| $[NiF_6]^{-4}$ | $[NiF_6]^{-2}$ | $(d)$ |