On addition of one ml of 10% NaCl solution of 10ml gold sol in the pre – InterviewSolution

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1.	On addition of one ml of 10% NaCl solution of 10ml gold sol in the presence of 0.25 gm of starch. The coagulation is just prevernted, starch had goldnumberA. 0.025B. 0.25C. 2.5D. None
Answer» Correct Answer - D `0.25xx1000=250`.

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