Question

Observe the following statements: I. Micelles have both lyophilic and lyophobic parts II. Starch in water is an example for multimolecular colloid III. The CMC of a soap is \(10^{-3}\,\text{mol L}^{-1}\). It can form a micelle when its concentration is less than \(10^{-3}\,\text{mol L}^{-1}\) IV. Gold sol can be prepared by Bredig's Arc method Choose the correct statements.

• A. I, II, III, IV
• B. I, II, IV only
• C. I, IV only
• D. II, III only

Hint:

Starch = Macromolecular colloid. Micelles form only above CMC. Gold sol is prepared by Bredig's arc method.

Answer 1

The Correct Option is C