Which of the following can form colloidal sol with water?

Which of the following can form colloidal sol with water?
  1. Common salt
  2. Starch
  3. Glucose
  4. Ammonium sulphate

Solution

The substance which forms the colloidal solution in water is starch. A colloidal solution is a solution in which the colloid mixes uniformly. All colloids have a Tyndall Effect, which is not exhibited by glucose. Starch is a colloid and thus when mixed with water can form the colloidal solution.

Asked in: MHT CET 2020 (14 Oct Shift 1)

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