For the coagulation of a negatively charged c | vedclass

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

Question

(A) 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 op

Vedclass · Accepted Answer

$AlCl_3$

Vedclass · Answer

(A) 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). For a negatively charged sol,the coagulating power of the cation increases with its valency. The valencies of the cations in the given options are: $Al^{3+}$ $(AlCl_3)$,$K^+$ $(K_2SO_4)$,$Na^+$ $(NaOH)$,and $H^+$ $(HCl)$. Since $Al^{3+}$ has the highest valency $(+3)$,it has the highest coagulating power. Therefore,the minimum amount of $AlCl_3$ is required for coagulation.

List-$I$	List-$II$
$a$. Cheese	$i$. dispersion of liquid in liquid
$b$. Pumice stone	$ii$. dispersion of liquid in gas
$c$. Hair cream	$iii$. dispersion of gas in solid
$d$. Cloud	$iv$. dispersion of liquid in solid

For the coagulation of a negatively charged clay sol in water,the minimum amount of which of the following is required?

Similar Questions

Colloidal particles carry a charge. This is demonstrated by ........

The purification of colloids is carried out by which of the following processes?

Fog is a colloidal solution of

Vedclass Test Series

Exam Paper Generator

Online Exam Module