For which text{lyophilic} sol is the text{ | vedclass

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(D) The $ 	ext{Gold Number} $ is defined as the minimum weight of a protective colloid in milligrams which must be added to $ 10 	ext{ mL} $ of a st

Vedclass · Accepted Answer

Potato starch

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(D) The $ 	ext{Gold Number} $ is defined as the minimum weight of a protective colloid in milligrams which must be added to $ 10 	ext{ mL} $ of a standard red gold sol so that no coagulation of the gold sol takes place when $ 1 	ext{ mL} $ of $ 10\% 	ext{ NaCl} $ solution is added to it.Lower $ 	ext{Gold Number} $ indicates higher protective power.Among the given options,$ 	ext{Gelatin} $ has the lowest $ 	ext{Gold Number} $ $( 0.005-0.01 )$,while $ 	ext{Potato starch} $ has the highest $ 	ext{Gold Number} $ $( 25 )$.

List-$I$	List-$II$
$(A)$ Solid dispersed in liquid	$(I)$ Emulsion
$(B)$ Liquid dispersed in liquid	$(II)$ Foam
$(C)$ Gas dispersed in liquid	$(III)$ Gel
$(D)$ Liquid dispersed in solid	$(IV)$ Sol
	$(V)$ Aerosol

For which $ \text{lyophilic} $ sol is the $ \text{Gold Number} $ the highest?

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