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JEE Main Chemistry question

ChemistrySurface ChemistryJEE Main

Not in JEE Main or NEET syllabus

The gold number of gelatin is 0.01. Calculate the amount of gelatin (in mg) to be added to 1000 mL of a colloidal sol of gold to prevent its coagulation, before adding 1 mL of 10% NaCl solution.

Answer: 1

Solution

A gold number of 0.01 means 0.01 mg of gelatin is required to protect the standard 10 mL of gold sol against coagulation by

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Question ID VK-144932