Preparation of Lyophobic sols by chemical met | vedclass

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(D) Lyophobic sols are prepared by chemical methods such as double decomposition,oxidation,reduction,and hydrolysis.For example:$1$. Double decomposit

Vedclass · Accepted Answer

all of these

Vedclass · Answer

(D) Lyophobic sols are prepared by chemical methods such as double decomposition,oxidation,reduction,and hydrolysis.For example:$1$. Double decomposition: $As_2O_3 + 3H_2S ightarrow As_2S_3 (	ext{sol}) + 3H_2O$$2$. Oxidation: $2H_2S + SO_2 ightarrow 3S (	ext{sol}) + 2H_2O$$3$. Reduction: $2AuCl_3 + 3HCHO + 3H_2O ightarrow 2Au (	ext{sol}) + 3HCOOH + 6HCl$$4$. Hydrolysis: $FeCl_3 + 3H_2O ightarrow Fe(OH)_3 (	ext{sol}) + 3HCl$Since all these methods are used,the correct option is $D$.

$i$. Foam	$a$. Smoke
$ii$. Gel	$b$. Cell fluid
$iii$. Aerosol	$c$. Jellies
$iv$. Emulsion	$d$. Rubber
	$e$. Froth
	$f$. Milk

Preparation of Lyophobic sols by chemical method involves

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