7(c)
Identify the cations in each of the following case:
(i) NaOH solution when added to the solution 'A' gives a reddish brown precipitate.
(ii) NH4OH solution when added to the solution 'B' gives a white ppt which does not dissolve in excess.
(iii) NaOH solution when added to the solution 'C' gives a white ppt which is insoluble in excess.
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(i) Ferric (Fe3+) ion
(ii) Lead (Pb2+) ion
(iii) Calcium (Ca2+) ion