Gold number of a lyophilic sol is such a prop | vedclass

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Question

(C) The gold number of a lyophilic sol is defined as the minimum amount of the protective colloid in milligrams required to just prevent the coagulati

Vedclass · Accepted Answer

Lower its value,the greater is the protecting power

Vedclass · Answer

(C) The gold number of a lyophilic sol is defined as the minimum amount of the protective colloid in milligrams required to just prevent the coagulation of $10 \, mL$ of a standard gold sol when $1 \, mL$ of a $10 \, \%$ $NaCl$ solution is added to it.Since the gold number represents the amount of colloid needed to provide protection,a lower gold number indicates that a smaller amount of the substance is required to achieve the same protective effect.Therefore,the lower the gold number,the greater is the protecting power of the lyophilic colloid.

$X$ (Colloid)	$Y$ (Classification)
$I$. Smoke	$A$. Sol
$II$. Gelatin	$B$. Aerosol
$III$. Soap lather	$C$. Emulsion
$IV$. Milk	$D$. Foam

Gold number of a lyophilic sol is such a property that:

Similar Questions

Which of the following is used for the preparation of colloids?

Which one of the following is a hydrophilic colloidal sol?

Various types of colloids are given below. Match Column $X$ with Column $Y$.

$X$ (Colloid) $Y$ (Classification)

$I$. Smoke $A$. Sol

$II$. Gelatin $B$. Aerosol

$III$. Soap lather $C$. Emulsion

$IV$. Milk $D$. Foam

Colloidal solution of gold is prepared by .............

Among the following methods:
$(i)$ Addition of an electrolyte
$(ii)$ Electrophoresis
$(iii)$ Addition of a protective colloid
$(iv)$ Addition of an oppositely charged sol
the coagulation of a lyophobic sol can be carried out by:

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