Which amongst the following aqueous solutions of electrolytes will have minimum elevation in boiling point? (Choose the correct option.) [2023]

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Solution

Q.
Which amongst the following aqueous solutions of electrolytes will have minimum elevation in boiling point (Choose the correct option.) [2023]

1 0.05 M NaCl

2 0.1 M KCl

3 0.1 M ${MgSO}_{4}$

4 1 M NaCl

Ans.
(1)

$i \times M ↓ \Rightarrow Δ T_{b} ↓$

Electrolyte $i \times M$

NaCl $2 \times 0.05 = 0.1$

KCl $2 \times 0.1 = 0.2$

${MgSO}_{4}$ $2 \times 0.1 = 0.2$

NaCl $2 \times 1 = 2$

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