1. Tardigrade
  2. Question
  3. Chemistry
  4. How many of the statements are incorrect? (I) Lyophobic are self stabilized. (II) For a protective colloid, the higher the gold number the greater its protecting power. (III) 0.025 g of a protective colloid is needed to prevent coagulation of 10 mL standard gold sol on addition of 1 mL of 10 % NaCl solution, then its gold no. is 0.025 . (IV) Lyophilic sols are more stable than lyophobic sols due to solvation of colloidal particles.

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Q. How many of the statements are incorrect?
(I) Lyophobic are self stabilized.
(II) For a protective colloid, the higher the gold number the greater its protecting power.
(III) $0.025\, g$ of a protective colloid is needed to prevent coagulation of $10\, mL$ standard gold sol on addition of $1 mL$ of $10 \% NaCl$ solution, then its gold no. is $0.025 .$
(IV) Lyophilic sols are more stable than lyophobic sols due to solvation of colloidal particles.

Surface Chemistry

Solution:

($I, II$ and $III$) are incorrect.