Gold number of starch is 25. Amount of starch that should be added to 10 mL of Gold sol in presence of 1 mL of $10 %$ NaCl will be

250 g

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0.025 g

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0.25 g

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2.5 g

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Solution

The correct option is B 0.025 g
Gold number is expressed in milligrams of protective colloid

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Gold number of starch is 25. Amount of starch that should be added to 10 mL of Gold sol in presence of 1 mL of 10% NaCl will be

The correct option is B 0.025 gGold number is expressed in milligrams of protective colloid

Gold number of starch is 25. Amount of starch that should be added to 10 mL of Gold sol in presence of 1 mL of $10 %$ NaCl will be

The correct option is B 0.025 g
Gold number is expressed in milligrams of protective colloid