ICSE Class 10 Answered
How does Ammonium hydroxide help in distinguish between: (i) Iron (II) chloride and Iron (III) chloride (ii) Zinc sulphate and Lead nitrate (iii) Lead hydroxide and Zinc hydroxide
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
Expert Answer
(i) Iron (II) chloride on reaction with Ammonium hydroxide forms a dirty green precipitate of ferrous hydroxide while Iron (III) chloride on reaction with Ammonium hydroxide forms a reddish brown precipitate of ferrous hydroxide.
(ii) Zinc sulphate solution on reaction with ammonium hydroxide produces a white,gelatinous precipitate of zinc hydroxide which is soluble in excess of ammonium hydroxide whereas lead nitrate on treatment with ammonium hydroxide forms chalky white ppt. which is insoluble in excess of ammonium hydroxide.
(iii) Lead hydroxide remains insoluble in excess of ammonium hydroxide whereas zinc hydroxide dissolves in excess ammonium hydroxide.
Answered by | 04 Jun, 2014, 03:23: PM
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