MCQ
Which of the following is most basic in nature
- A$Eu(OH)_3$
- B$Lu(OH)_3$
- ✓$Pr (OH)_3$
- D$Pm(OH)_3$
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$(A)$ $\Delta G$ is positive $(B)$ $\Delta S _{\text {system }}$ is positive
$(C)$ $\Delta S _{\text {surroundings }}=0$ $(D)$ $\Delta H =0$

${K}_2 \mathrm{Cr}_2 \mathrm{O}_7$ & ${CuSO}_4$
SideX $SPM$ Side $\mathrm{Y}$ Due to osmosis :