`NH_(3)` solution was added to four semple solution in difference test tube and found the following observation about the precipitate. a. White ppt which is solution in oxcess of `NH_(3)` solution b. On heating which is white in cold but yellow on heating c. The cation present in (b) forms white ppt , with hypo solution which give black ppt on heating d. The cation present in (c ) forms soluble complex with excess of `NH_(3)` solution The solution initialy present in (a) `+ H_(2)S` (basic medium) gives ppt , then (a) may haveA. `Zn^(2+)`B. `Cd^(2+)`C. `Co^(2+)`D. `Ni^(2+)`

`NH_(3)` solution was added to four semple solution in difference test

1.	`NH_(3)` solution was added to four semple solution in difference test tube and found the following observation about the precipitate. a. White ppt which is solution in oxcess of `NH_(3)` solution b. On heating which is white in cold but yellow on heating c. The cation present in (b) forms white ppt , with hypo solution which give black ppt on heating d. The cation present in (c ) forms soluble complex with excess of `NH_(3)` solution The solution initialy present in (a) `+ H_(2)S` (basic medium) gives ppt , then (a) may haveA. `Zn^(2+)`B. `Cd^(2+)`C. `Co^(2+)`D. `Ni^(2+)`
Answer» Correct Answer - a,b

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