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The coagulation of 100 mL of colloidal sol. is completely prevented by adding 0.25g of a protective colloid ‘A’ to it before adding 1 mL of NaCl solution. Determine the gold number of A.

The coagulation of 100 mL of colloidal sol. is completely prevented by adding 0.25g of a protective colloid ‘A’ to it before adding 1 mL of NaCl solution. Determine the gold number of A.

Grade:Upto college level

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