Which of the following is positively charged sol?

Which of the following is positively charged sol?
  1. Haemoglobin in blood
  2. Sol of starch
  3. Gelatin
  4. 'Ag' sol

Solution

Haemoglobin in blood is a positively charged sol whereas sol of starch, gelatin sol and silver sol are negatively charged sols.

Asked in: MHT CET 2023 (11 May Shift 2)

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