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STD 12 -1. Solution and colligative properties — JEE STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceJEESTD 12 -1. Solution and colligative properties4 Marks
MCQ
The van't Hoff factor $'i'$ for a compound which undergoes dissociation in one solvent and association in other solvent is respectively
  • A
    Less than one and greater than one
  • ✓
    Less than one and less than one
  • C
    Greater than one and less than one
  • D
    Greater than one and greater than one
✓

Answer

Correct option: B.
Less than one and less than one
b
$\frac{\mathrm{M}_{\mathrm{Theo}}}{\mathrm{M}_{\mathrm{Obs}}}=1-\alpha+\frac{\alpha}{\mathrm{n}}$

$\mathrm{M}_{\mathrm{Obs}}=\frac{94}{0.7}$

$=134.2$

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