Which ion has the minimum coagulation value?

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Question

(D) According to the Hardy-Schulze rule,the coagulating power of an ion is directly proportional to its valency. Greater the valency of the flocculati

Vedclass · Accepted Answer

$[Fe(CN)_6]^{4-}$

Vedclass · Answer

(D) According to the Hardy-Schulze rule,the coagulating power of an ion is directly proportional to its valency. Greater the valency of the flocculating ion,the greater is its coagulating power. Coagulating power is inversely proportional to the coagulation value. Therefore,the ion with the highest valency will have the minimum coagulation value. Comparing the valencies: $Cl^{-}$ $(1)$,$SO_4^{2-}$ $(2)$,$PO_4^{3-}$ $(3)$,$[Fe(CN)_6]^{4-}$ $(4)$. The ion $[Fe(CN)_6]^{4-}$ has the highest valency of $4$,hence it has the minimum coagulation value.

List-$I$ (Colloid Type)	List-$II$ (Example)
$A$. Sol	$I$. Cloud
$B$. Foam	$II$. Whipped cream
$C$. Gel	$III$. Paint
$D$. Aerosol	$IV$. Butter

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

Similar Questions

Which of the following has maximum coagulating power in the coagulation of positively charged sol?

Match the following:

List-$I$ (Colloid Type) List-$II$ (Example)

$A$. Sol $I$. Cloud

$B$. Foam $II$. Whipped cream

$C$. Gel $III$. Paint

$D$. Aerosol $IV$. Butter

The correct answer is:

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

The process of separating colloidal particles from those of molecular dimensions by electric current is known as:

Lyophilic sols are:

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