Q.

Gold Number is defined as the mass of protective colloidal solution which will just prevent the coagulation of x mL of a given gold solution on adding y mL of z % NaCl solution. x, y and z are respectively

Moderate

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a

b

c

d

answer is B.

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Detailed Solution

By definition of gold number x = 10 mL of gold sol y= 1 mL Z = 10% NaCl solution
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