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.

List-$I$	List-$II$
$I$. Colloidal antimony	$A$. Kala-azar
$II$. Silver sol	$B$. Intramuscular injection
$III$. Milk of magnesia	$C$. Eye lotion
$IV$. Gold sol	$D$. Stomach disorder

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

Similar Questions

Match List-$I$ with List-$II$ and select the correct option:
List-$I$ List-$II$
$I$. Colloidal antimony $A$. Kala-azar
$II$. Silver sol $B$. Intramuscular injection
$III$. Milk of magnesia $C$. Eye lotion
$IV$. Gold sol $D$. Stomach disorder

Peptization denotes

Explain the Tyndall effect.

Which of the following is an example of two-dimensional nanostructures?

Vedclass Test Series

Exam Paper Generator

Online Exam Module