Select the correct statement(s) — Surface Chemistry Chemistry Question

💡 Solution & Explanation

A concentration below the CMC (10⁻⁴ M) forms a true solution, not a colloid. Charge is determined by electrophoresis, not dialysis. Peptization is converting a precipitate into a colloid, not the reverse. In a water-in-oil emulsion, the continuous dispersion medium is oil; thus, an oil-soluble dye dissolves in the continuous phase, making the background coloured. Therefore, correct answer is D.