Question

A substance X dissolves very fast when put into a solvent Y at
${25}^{\circ }C$.
A substance Z dissolves comparatively slowly when put into solvent Y at ${25}^{\circ }C$.
So, I conclude: substance X has more solubility than substance Y.

• A. True
• B. False

Answer 1

The correct option is B False

Let's think about this for a moment. I know that X dissolves faster than Z. But I don't know anything about how much X dissolves or how much Z dissolves. What if only 1 gm of X dissolved and 100 gm of Z dissolved?
Isn't solubility about how much something dissolves?