400 mL of standard gold sol is just prevented from coagulation by the – InterviewSolution

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1.	400 mL of standard gold sol is just prevented from coagulation by the addition of 0.96 g of starch before adding 1 mL of 10% NaCl solution, the gold number will be
Answer» `2.4` 76 240 24 Solution :400 mL of gold SOL requires starch= 960 mg . `therefore` 10 mL of glod sol require strach `= (960)/(400) XX 10=24` mg

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