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NEET 2023
Exam
NEET
Year
2023
Subject
Chemistry
Chapter
Solutions

NEET 2023 · Chemistry · Solutions

Which amongst the following aqueous solutions of electrolytes will...

Which amongst the following aqueous solutions of electrolytes will have minimum elevation in boiling point? Choose the correct option.

Options

  1. A0.1MMgSO40.1 \mathrm{M} \mathrm{MgSO}_4
  2. B1MNaCl1 \mathrm{M} \mathrm{NaCl}
  3. C0.05MNaCl0.05 \mathrm{M} \mathrm{NaCl}
  4. D0.1MKCl0.1 \mathrm{M} \mathrm{KCl}

Correct answer

C. 0.05MNaCl0.05 \mathrm{M} \mathrm{NaCl}

Step-by-step solution

 Solution  Moles of particles in 1 L solution 0.1MMgSO40.21MNaCl20.05MNaCl0.10.1MKCl0.2\begin{array}{ll}\text{ Solution } & \text{ Moles of particles in } 1 \mathrm{~L} \text{ solution } \\ 0.1 \mathrm{M} \mathrm{MgSO}_4 & 0.2 \\ 1 \mathrm{M} \mathrm{NaCl} & 2 \\ 0.05 \mathrm{M} \mathrm{NaCl} & 0.1 \\ 0.1 \mathrm{M} \mathrm{KCl} & 0.2\end{array} Lesser is the number of particles, lower is the elevation in boiling point
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