Q.

Gold number of protective colloids A,B,C and D are 0.5, 0.01, 0.1 and 0.005 respectively. The correct order of their protective powers is

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a

A < C < B < D

b

D < A < C < B

c

 B < D < A < C

d

C < B < D < A

answer is A.

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Detailed Solution

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protecting power of colloidal solution α1gold number

protecting power order =A<C<B<D

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