Electrolyte solution with the lowest freezing point depression

1. A.
   0.1 m NaCl
2. B.
   $0.05\text{ }m{MgSO}_{4}$
3. C.
   $0.08\text{ }m{AlPO}_{4}$
4. D.
   $0.06\text{ }m{Al}_{2}\left( {SO}_{4} \right)_{3}$

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1. A.
   $0.2$ m Potassium chloride
2. B.
   $0.1$ m Sodium chloride
3. C.
   $0.05$ m Aluminium phosphate
4. D.
   $0.15$ m Magnesium sulphate

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