A) dissoving \[Fe{{(OH)}_{3}}\]in concentrated \[HCl\]
B) dissolving \[Fe{{(OH)}_{3}}\]in dilute HCl
C) passing dry HCl over heated iron scrap
D) passing dry \[\text{C}{{\text{l}}_{\text{2}}}\]gas over heated iron scrap
Correct Answer: C
Solution :
Anhydrous ferric chloride is prepared by passing dry \[\text{C}{{\text{l}}_{\text{2}}}\]gas over heated iron fillings. \[2Fe+3C{{l}_{2}}\xrightarrow{\Delta }2FeC{{l}_{3}}\]
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