The disperse phase in colloidal iron (III) hydroxide and colloidal gold is positively and negatively charged, respectivley. Which of the following statements is NOT correct [AIEEE 2005]

Coagulation in both sols can be brought about by electrophoresis

Magnesium chloride solution coagulates, the gold sol more readily than the iron (III) hydroxide sol

Sodium sulphate solution causes coagulation in both sols

The disperse phase in colloidal iron (III) hydroxide and colloidal gol

1.	The disperse phase in colloidal iron (III) hydroxide and colloidal gold is positively and negatively charged, respectivley. Which of the following statements is NOT correct [AIEEE 2005]
A.	Magnesium chloride solution coagulates, the gold sol more readily than the iron (III) hydroxide sol
B.	Sodium sulphate solution causes coagulation in both sols
C.	Mixing the sols has no effect
D.	Coagulation in both sols can be brought about by electrophoresis
Answer» D. Coagulation in both sols can be brought about by electrophoresis

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The disperse phase in colloidal iron (III) hydroxide and colloidal gold is positively and negatively charged, respectivley. Which of the following statements is NOT correct [AIEEE 2005]

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