Which of the following electrolytes is most e | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) According to the $Hardy-Schulze$ rule,the coagulating power of an electrolyte depends on the valency of the active ion (the ion carrying a charge

Vedclass · Accepted Answer

$MgCl_2$

Vedclass · Answer

(D) According to the $Hardy-Schulze$ rule,the coagulating power of an electrolyte depends on the valency of the active ion (the ion carrying a charge opposite to that of the colloidal particles).Gold solution is a negatively charged sol.Therefore,the coagulating power depends on the valency of the cation.However,in this specific case,the complex anion $[Fe(CN)_6]^{4-}$ has a high negative charge,but the question refers to the coagulation of a gold sol (which is negative). The effective coagulating ion must be a cation.Wait,gold sol is typically negative,so it requires a cation for coagulation. Among the given options,$MgCl_2$ provides $Mg^{2+}$,while others provide $Na^+$ or $K^+$.Actually,$K_4[Fe(CN)_6]$ is often cited in textbooks for specific interactions,but based on the $Hardy-Schulze$ rule for a negative sol,$MgCl_2$ $(Mg^{2+})$ is more effective than $Na^+$ or $K^+$.Given the standard context of this question,$K_4[Fe(CN)_6]$ is often the intended answer due to the high charge density of the complex ion,but strictly speaking,for a negative sol,$MgCl_2$ is the correct choice. Assuming the question implies the most effective coagulant provided,$MgCl_2$ is the answer.

Which of the following electrolytes is most effective in the coagulation of gold solution?

Similar Questions

Which of the following pairs is correct?

When the movement of dispersed particles is restricted,the movement of the dispersion medium under the influence of an electric field is called:

Tyndall effect is more pronounced in

Which of the following anions has the greatest coagulating power for a positively charged sol?

Which of the following solutions is used in the styptic action which prevents bleeding of blood?

Vedclass Test Series

Exam Paper Generator

Online Exam Module