AP EAMCET · Chemistry · Solutions
Which of the following pair of solutions is isotonic?
A. \(18 \mathrm{~g} / \mathrm{L}\) of glucose of solution and \(6 \mathrm{~g} / \mathrm{L}\) of Urea solution
B. \(10 \mathrm{~g} / \mathrm{L}\) of glucose solution and \(10 \mathrm{~g} / \mathrm{L}\) of Urea solution
C. \(\quad 0.01 \mathrm{M} \mathrm{NaOH}\) solution and \(0.02 \mathrm{M}\) glucose solution
D. \(0.01 \mathrm{M} \mathrm{NaCl}\) solution and \(0.01 \mathrm{M}\) glucose solution
(Assume that \(\mathrm{NaCl}\) undergoes complete dissociation)
- A \(A\) and \(B\)
- B \(\mathrm{A}\) and \(\mathrm{C}\)
- C \(B\) and \(D\)
- D \(B\) and \(C\)
Answer & Solution
Correct Answer
(B) \(\mathrm{A}\) and \(\mathrm{C}\)
Step-by-step Solution
Detailed explanation
Osmotic pressure \(\pi=\mathrm{CRT}\); \(\mathrm{C}\) is in moles/L. \(\mathrm{C}=\frac{\mathrm{n}}{\mathrm{V}}=\frac{\mathrm{m}}{\mathrm{MV}}\) \(\mathrm{m}=\) mass of solute and \(\mathrm{M}=\mathrm{mol}\). wt. of solute \(\mathrm{V}=\) Volume in \(\mathrm{L}\). At a given…
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