KCET · Chemistry · d and f Block Elements
The function of \(\mathrm{Fe}(\mathrm{OH})_{3}\) in the contact process is
- A to remove arsenic impurity
- B to detect colloidal impurity
- C to remove moisture
- D to remove dust particles
Answer & Solution
Correct Answer
(A) to remove arsenic impurity
Step-by-step Solution
Detailed explanation
The function of \(\mathrm{Fe}(\mathrm{OH})_{3}\) in the contact process is to remove arsenic impurity. \(\mathrm{Fe}(\mathrm{OH})_{3}\) is a positive sol, hence it removes arsenic impurity which is a negative sol.
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