Question

Isotonic solutions have the same

• A. Density
• B. Normality
• C. Strength
• D. Molar concentration

Hint:

Isotonic solutions have the same osmotic pressure, which means they have the same molar concentration of solute.

Answer 1

The Correct Option is D

Step 1: Understanding isotonic solutions.
Isotonic solutions are solutions that have the same osmotic pressure. This means the molar concentration of solute in both solutions is the same. Step 2: Analysis of options.
(A) Density: Density may not be the same in isotonic solutions as it depends on the composition of the solvent.
(B) Normality: Normality depends on the equivalent weight of solute, so it may vary between solutions.
(C) Strength: Strength is not the property that defines isotonic solutions.
(D) Molar concentration: Correct — Isotonic solutions have the same molar concentration of solute.
Step 3: Conclusion.
The correct answer is (D) because isotonic solutions have the same molar concentration.