AP EAMCET · Chemistry · Solutions
Which one of the following is an isotonic pair of solutions?
- A \(0.15 \mathrm{M} \mathrm{NaCl}\) and \(0.1 \mathrm{M} \mathrm{Na}_2 \mathrm{SO}_4\)
- B \(0.2 \mathrm{M}\) Urea and \(0.1 \mathrm{M}\) Sugar
- C 0.1 \(\mathrm{MBaCl}_2\) and \(0.2 \mathrm{M}\) Urea
- D \(0.4 \mathrm{M} \mathrm{MgSO}_4\) and \(0.1 \mathrm{MNH}_4 \mathrm{Cl}\)
Answer & Solution
Correct Answer
(A) \(0.15 \mathrm{M} \mathrm{NaCl}\) and \(0.1 \mathrm{M} \mathrm{Na}_2 \mathrm{SO}_4\)
Step-by-step Solution
Detailed explanation
Two solutions are isotonic if they have same molar concentrations of the particles. (a) \(0.15 \mathrm{M} \mathrm{NaCl}\) and \(0.1 \mathrm{M} \mathrm{Na}_2 \mathrm{SO}_4\) \(\mathrm{NaCl}\) is an electrolyte which dissociates to give 2 ions, thus concentration of ions in the…
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