General

Why AlCl3 is preferred over KCL?

Why AlCl3 is preferred over KCL?

Valency is directly proportional to the coagulation efficiency, which means it has high coagulant properties. That is why ferric chloride is preferred over potassium chloride to prevent bleeding.

Which out of AlCl3 or KCL is a better coagulating agent for flocculation of gold solution?

Since AlCl​3 forms Al3+ ion and NaCl forms Na+1 only, AlCl3 is a better coagulating agent.

Which is most effective for coagulation of Fe OH 3 solution?

Fe(OH)3 is a positively charged sol. According Hardy Schulze rule, greater the charge on an oppositely charged ions of the electrolyte added, more effectively it is in bringing about the coagulation, Hence, Na3PO4 (containing PO3-4 inos) is more effective.

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Which one is the best coagulating substances for Fe OH 3 colloid?

The best coagulant for the precipitation of Fe(OH)3 sol is: Na2HPO3.

Why mgcl2 is a better coagulant than KCl for as2s3?

In order to coagulate, there must be more ions. But there will be three ions when MgCl₂ dissociates (Mg²⁺ and 2Cl⁻), also, there will be more charge on Mg (Mg²⁺) than when KCl dissociates.

Why does ferric chloride stop bleeding?

Ferric chloride exerts its effects with agglutination of proteins in the blood. In fact, chloride and ferric ions in this compound react with proteins of the blood, causing the proteins to coagulate. These coagulated proteins close the openings of small capillaries (6).

Which is more effective in causing coagulation?

Hint: Ferric hydroxide is a positive charged colloidal solution. It coagulates negatively charged particles. Higher the negative charge more effective is the coagulation.

Which one is more effective bacl2 or KCl?

According to the Hardy–Schulze rule, the greater the valency of a flocculating ion, the greater is its power to cause precipitation. Between Ba2+ (from BaCl2) and K+ (from KCl), Ba2+ has greater valency. Therefore, BaCl2 will be more effective in causing the coagulation of a negatively charged colloidal sol.

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Which of the following will be the most effective in the coagulation of Al OH 3 sol?

K3PO4 has greater negative charge. Hence, it is most effective in coagulation of AlOH)3 sol.

Which electrolyte is most effective for the precipitation of Fe OH 3?

the valency of chloride. sulfate and phosphate is 1,2,3 respectively. Hence Na₃PO₄ is most effective electrolyte for the coagulation of Fe(OH)₃ sol which is a positively charged sol.

Which is the least effective substance for the coagulation of Fe OH 3 colloid?

In KBr, Br- has smallest negative charge among given choices. Therefore, it will be least effective in coagulating Fe(OH)3.

Which of the following ion will be most effective in the coagulation of Al OH 3 sol?

Among the following statements, (1) For coagulation of As2​S3​ sol, +ve ions are effective. (2) For coagulation of aluminium hydroxide solution, Ba2+ ions are more effective than Na+.