CBSE Class 12-science Answered
Why aqueous solution of methyl amine reacts with Iron(III) Chloride to form ppt. iron(III) hydroxide?
Asked by piyush das | 31 Aug, 2011, 10:23: AM
Expert Answer
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Aqueous methylamine reacts with ferric chloride to precipitate hydrated ferric oxide:
CH3NH2
Due to the +I effect of-CH3 group, methylamine is more basic than water. Therefore, in water, methylamine produces OH- ions by accepting H+ ions from water.
CH3-NH2 + H2O CH3-NH3+ + OH-
Ferric chloride dissociates in water to form Fe3+ and Cl- ions.
Then, OH- ion reacts with Fe3+ ion to form precipitate of hydrated ferric oxide.
Fe3+ + 6OH- Fe2O3.3H2O
Hydrated ferric oxide
Answered by | 01 Sep, 2011, 10:27: AM
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