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Which of the following reagents willnot ...

Which of the following reagents willnot be useful in separating a mixture of `Zn^(2+) and Cu^(2-)` ?

A

`H_(2)S` in an acid medium

B

`H_(2)S` in an alkaline method

C

Excess of NaOH solution

D

`NH_(3)` solution

Text Solution

Verified by Experts

The correct Answer is:
B, D
`NH_(3)` solution cannot be used because both these cations form soluble complexes with `NH_(3)`
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VK JAISWAL-QUALITATIVE INORGANIC ANALYSIS-ONE OR MORE ANSWER IS/ARE CORRECT
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