Question

What is the Van't Hoff factor (\(i\)) for a non-electrolyte?

• A. \(0\)
• B. \(1\)
• C. \(2\)
• D. \(3\)

Hint:

For non-electrolytes (like glucose or urea), there is no ionization in solution, so the Van't Hoff factor \(i = 1\).

Answer 1

The Correct Option is B

Concept: The Van't Hoff factor (\(i\)) represents the number of particles into which a substance dissociates in solution. It is used in colligative properties such as boiling point elevation, freezing point depression, and osmotic pressure.

Step 1: Understanding non-electrolytes. A non-electrolyte is a substance that does not dissociate into ions when dissolved in water. It remains as whole molecules in solution.

Step 2: Value of Van't Hoff factor. Since a non-electrolyte does not dissociate, the number of particles in solution remains the same as the number of molecules dissolved. Thus, \[ i = 1 \]

Step 3: Conclusion. Therefore, the Van't Hoff factor for a non-electrolyte is \(\mathbf{i = 1}\).