Question

The disperse phase in colloidal iron (III)
hydroxide and colloidal gold is positively and
negatively charged, respectively. Which of the
following statements is NOT correct ?
(a) Coagulation in both sols can be brought
about by electrophoresis.
(b) Mixing the sols has no effect.
(c) Sodium sulphate solution causes
coagulation in both sols.
(d) Magnesium chloride solution coagulates,
the gold sol more readily than the iron (III)
hydroxide sol.

Answer 1

Answer :- d) Magnesium chloride solution coagulates,

d) Magnesium chloride solution coagulates,the gold sol more readily than the iron .

Answer 2

Answer:

(d) Magnesium chloride solution coagulates,

the gold sol more readily than the iron III

hydroxide sol.