Published by:
CGP EDU Academic Team
Published on: August 14, 2026
On addition of one ml solution of 
to 10 ml gold sol in the presence of 0.25 gm of starch, the coagulation is just prevented. Starch has the following gold number
Text Solution
Verified by ExpertsThe correct answer is:
D
By definition gold number of starch is the amount of starch in mg added to 10 ml standard gold sol which prevents the coagulation of gold on adding 1 ml of 10% NaCl solution. So the amount of starch is 0.25 g = 250 mg . Hence gold number is 250.
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
A liquid aerosol is a colloidal system of
The blue colour of water in the sea is due to
Butter is a colloid. It is formed when
Colloidal solution cannot be obtained from two such substances which are
Which of the following reactions leads to the formation of a substance in the colloidal state (in p…
Lyophobic colloids are