\( \mathrm{Fe}(\mathrm{OH})_{3} \) can be separated from \( \mathrm{Al}(\mathrm{OH})_{3} \) by a...

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\( \mathrm{Fe}(\mathrm{OH})_{3} \) can be separated from \( \mathrm{Al}(\mathrm{OH})_{3} \) by addition of ?
\( \mathrm{P} \)
(A) Dil. \( \mathrm{HCl} \)
(B) \( \mathrm{NaCl} \) solution
W
(C) \( \mathrm{NaOH} \) solution
(D) \( \mathrm{NH}_{4} \mathrm{Cl} \) and \( \mathrm{NH}_{4} \mathrm{OH} \)
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