Which of the following statements are correct? (i)Smaller the gold number of lyophiliccolloid, the larger will be its protective power. (ii) Lyophilic sols, in contrast to lyophobic sols caneasily coagulate on addition of small amounts of electrolytes.(iii) Ferric chloride solution is used to stop bleeding from a fresh cut because it coagulates the blood. (iv) The flocculation value of arsenious sulphide solis independent of the anion of the coagulating electrolyte.

Which of the following statements are correct? (i)Smaller the gold nu

1.	Which of the following statements are correct? (i)Smaller the gold number of lyophiliccolloid, the larger will be its protective power. (ii) Lyophilic sols, in contrast to lyophobic sols caneasily coagulate on addition of small amounts of electrolytes.(iii) Ferric chloride solution is used to stop bleeding from a fresh cut because it coagulates the blood. (iv) The flocculation value of arsenious sulphide solis independent of the anion of the coagulating electrolyte.
Answer» (i),(ii) and (iii) (i),(iii) and (IV) (ii),(iii) and (iv) (i) , (ii) and (iv) SOLUTION : Lyophilic SOLS are stable and do not COAGULATE easily.