Surface ChemistryMedium
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
When O2 is adsorbed on a metallic surface, electron transfer occurs from the metal to O2. The TRUE,statement (s) regardi...Adsorption is the phenomenon in which a substance:...Which of the following represents a macromolecular colloidal particles ?...When freshly precipated Fe(OH)3 is shaken with aqeous solution of FeCl3, a colloidal solution is formed. This process is...Which is the correct statement in case of milk :...