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1. Solution and colligative properties — Chemistry STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceChemistry1. Solution and colligative properties1 Mark
MCQ
$0.05 \mathrm{M} \mathrm{CuSO}_4$ when treated with $0.01 \mathrm{M} \mathrm{K}_2 \mathrm{Cr}_2 \mathrm{O}_7$ gives green colour solution of $\mathrm{Cu}_2 \mathrm{Cr}_2 \mathrm{O}_7$. The [$SPM$ : Semi Permeable Membrane]

${K}_2 \mathrm{Cr}_2 \mathrm{O}_7$  &  ${CuSO}_4$

SideX $SPM$ Side $\mathrm{Y}$ Due to osmosis :

  • A
    Green colour formation observed on side $Y$.
  • B
    Green colour formation observed on side $\mathrm{X}$.
  • C
    Molarity of $\mathrm{K}_2 \mathrm{Cr}_2 \mathrm{O}_7$ solution is lowered.
  • ✓
    Molarity of $\mathrm{CuSO}_4$ solution is lowered.
✓

Answer

Correct option: D.
Molarity of $\mathrm{CuSO}_4$ solution is lowered.
d
Only solvent Molecules are allowed to pass through the $SPM$.

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