Two coloured salt solution of two metals A and B gave precipitates with NaOH and NH_(4)OH. On further additions of NH_(4)OH, the precipitate disappears, in the case of B. There is no such change in the case of 'A' either with NaOH or NH_(4)OH. Identify A and B. Give equations

Two coloured salt solution of two metals A and B gave precipitates wit

1.	Two coloured salt solution of two metals A and B gave precipitates with NaOH and NH_(4)OH. On further additions of NH_(4)OH, the precipitate disappears, in the case of B. There is no such change in the case of 'A' either with NaOH or NH_(4)OH. Identify A and B. Give equations
Answer» Solution :(i) metals GIVING coloured salts (ii) coloured salts that GIVEN precipitates with NaOH and `NH_(4)OH` (III) COMPARISON between the reactions of the precipitates obtained with excess NaOH and `NH_(4)OH` (iv) solubility of the product FORMED