Electrolyte solution with the minimum elevation of boiling point

1. A.
   0.1 m AlCl$_3$
2. B.
   0.01 m MgCl$_2$
3. C.
   1 m KCl
4. D.
   0.5 m NaCl

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1. A.
   0.1 m NaCl
2. B.
   0.2 m KNO₃
3. C.
   0.1 m Na₂SO₄
4. D.
   0.05 m CaCl₂

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1. A.
   0.2 m KCl
2. B.
   0.1 m NaCl
3. C.
   $1\text{ }m{AlCl}_{3}$
4. D.
   $0.05\text{ }m{MgCl}_{2}$

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