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Distinguish between Iron (II) chloride and Iron (III) chloride. |
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Answer» Iron (II) chloride is dissolved in water and then sodium hydroxide is added. A dirty green precipitate is obtained which confirms the presence of iron (II) chloride. FeCl2 + 2NaOH → Fe(OH)2 + 2NaCl Iron (IK) chloride is also dissolved in water and then sodium hydroxide solution is added. A reddish brown precipitate is obtained, which confirms the presence of iron (HI) chloride. FeCl3 + 3NaOH → Fe(OH)3 + 3NaCl |
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