1.

Which of the following pairs of cations can be separated by adding NH_(4)Cl and NH_(4)OH to the mixture?

Answer»

`Fe^(3+), AL^(3+)`
`Cr^(3+), Ni^(2+)`
`Al^(3+), Cr^(3+)`
`Fe^(3+), Cr^(3+)`

ANSWER :B


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