Surface ChemistryHard
Question
On addition of one ml solution of 10% NaCl to 10 ml gold sol in the presence of 0.0250 gm of starch the coagulation is just prevented. Starch has the following gold number :
Options
A.0.025
B.0.25
C.2.5
D.25
Solution
Gold number is minimum amount of protective colloid when can protect 10 ml standard gold sol from coagulation when 1 ml of 10% NaCl is added.
Create a free account to view solution
View Solution FreeMore Surface Chemistry Questions
Which gas will be adsorbed on a solid to greater extent?...A colloidal solution is subjactedto an electrical field. the particles move towaeds anodes. The coagulation of same sol ...Which of the following is wrong in case of enzyme catalysis?...When a chalk stick is dipped in ink, then...Which of the following is preparation technique for colloids -...