Surface ChemistryHard
Question
The dispersed phase in colloidal iron(III) hydroxide and colloidal gold is positively and negatively charged, respectively. Which of the following statement(s) is/are not correct?
Options
A.Magnesium chloride solution coagulates the gold sol more readily than the iron(III) hydroxide
B.Sodium sulphate solution causes coagulation in both sols.
C.Mixing of the sols has no effect.
D.Coagulation in both sols can be brought about by electrophoresis.
Solution
Charge: Mg2+ (2 unit) > Cl– (1 unit).
Hence, better coagulation for negatively charged gold sol.
Create a free account to view solution
View Solution FreeMore Surface Chemistry Questions
The pressure of the gas was found to decrease from 720 to 480 mm. When 5g of sample of activated charcoal was kept in a ...Identify the statement(s) which is/are not correct with respect to the surface phenomenon....Softening of hard water is done using sodium aluminium silicate (zeolite). The causes :...Which of the following statements is incorrect regarding physiosorptions ?...Which of the following will have the highest coagulating power for As2S3 colloid (in excess of H2S) :-...