Which of the following statements is/are not | vedclass

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(B) $1$. Soap solutions form associated colloids (micelles) above the Critical Micelle Concentration $(CMC)$. This statement is true.$2$. Lyophilic co

Vedclass · Accepted Answer

Lyophilic colloids are irreversible sols.

Vedclass · Answer

(B) $1$. Soap solutions form associated colloids (micelles) above the Critical Micelle Concentration $(CMC)$. This statement is true.$2$. Lyophilic colloids are reversible sols,meaning they can be easily reformed by mixing the dispersed phase with the dispersion medium after evaporation. The statement that they are irreversible is false.$3$. Blood is a colloidal system,and its purification (removal of urea and other waste products) is indeed carried out by the process of dialysis. This statement is true.$4$. Blood is a negative sol. Addition of excess electrolytes like $Ca^{2+}$ and $K^{+}$ causes coagulation due to the neutralization of charge. This statement is true.Therefore,the statement that is not true is $B$.

List-$I$	List-$II$
$A$. Negatively charged sol	$I$. $Fe_{2}O_{3} \cdot xH_{2}O$
$B$. Macromolecular colloid	$II$. $CdS$ sol
$C$. Positively charged sol	$III$. Starch
$D$. Cheese	$IV$. $A$ gel

Which of the following statements is/are not true?

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An emulsifier:

The coagulating power of electrolytes having ions $Na^{+}$,$Al^{3+}$,and $Ba^{2+}$ for $As_{2}S_{3}$ sol increases in the order

Dialysis is the process of separation of

Match List-$I$ with List-$II$.

List-$I$ List-$II$

$A$. Negatively charged sol $I$. $Fe_{2}O_{3} \cdot xH_{2}O$

$B$. Macromolecular colloid $II$. $CdS$ sol

$C$. Positively charged sol $III$. Starch

$D$. Cheese $IV$. $A$ gel

Choose the correct answer from the options given below:

An example for hydrophobic sol among the following is

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