Question
Chemistry Question on Surface Chemistry
Which of the following is a positively charged Sol?
A
Starch
B
Gum
C
Gold Sol
D
Blood
Answer
Gold Sol
Explanation
Solution
Among the options provided, the positively charged sol is Gold Sol.
Gold Sol is a colloidal solution of gold nanoparticles suspended in a liquid medium. It is positively charged due to the adsorption of ions or molecules on the surface of gold nanoparticles, resulting in a positively charged sol.