Identify negatively charged sol from following.

Identify negatively charged sol from following.
  1. Sol of clay
  2. $\mathrm{Fe}_2 \mathrm{O}_3 \cdot \mathrm{xH}_2 \mathrm{O}$
  3. $\mathrm{TiO}_2$ sol
  4. Haemoglobin

Solution

Sol of clay $\rightarrow(-)$ ve $\mathrm{Fe}_2 \mathrm{O}_3 . \mathrm{xH}_2 \mathrm{O} \rightarrow(+)$ ve charge $\mathrm{TiO}_2 \mathrm{sol} \rightarrow(+)$ ve charge Haemoglobin $\rightarrow(+)$ ve charge

Asked in: MHT CET 2021 (20 Sep Shift 1)

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