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Statement-1:Gold number is the measure o...

Statement-1:Gold number is the measure of protective powers of different colloids.
Statement-2: The smaller the gold number of lyophilic colloid, the smaller is its protective power.

A

STATEMENT -1 is true, STATEMENT-2 is true and STATEMENT-2 is correct explanation for STATEMENT-4

B

STATEMENT -1 is true, STATEMENT-2 is true and STATEMENT-2 is not correct explanation for STATEMENT-5

C

STATEMENT-1 is true, STATEMENT-2 is false

D

STATEMENT-1 is false, STATEMENT-2 is true

Text Solution

Verified by Experts

The correct Answer is:
C
Gold number `prop (1)/("Protective power of lyophilic colloid")`
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Assertion: Gold number is the measure of protective powers of differents colloids. Reason: The smaller the gold number of lyophilic colloid, the smaller is its protective power.

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the protective power of the lyophilic colloids es expressed in terms of gold number, a term introduced by Zsigmondy. Gold number is the number of milli - gram of the protective colloid which prevent the coagulation of 10 mLof red gold sol , when 1 mL of a 10 per cent solution of sodium chloride is added to it . thus smaller the gold number of lyophillic colloid, the greater is the protective power. which of the following statement (S) is / are correct?