In the froth floatation process for benefaction of the ores, the ore particles float because — Metallurgy and Isolation of Elements Chemistry Question

💡 Solution & Explanation

Froth floatation is used for the concentration of ore. This process is based on the fact that gangue particles are wetted by water and oils whereas ores are not. In this process, the ore particles float on the surface as their surface area is not wetted by water. Therefore, the correct answer is option (b) their surface is not easily wetted by water.