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 goldnumber

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

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 goldnumber
Answer» 0.025 0.25 2.5 None Solution :`0.25xx1000=250`.