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which among the following pairs of ions ...

which among the following pairs of ions cannot be separated by `H_(2)S` in the presence of dilute `HCl` ?

A

`Bi^(3+) , Sn^(4+)`

B

`Al^(3+), Hg^(2+)`

C

`Zn^(2+), Cu^(2+)`

D

`Ni^(2+), Cu^(2+)`

Text Solution

Verified by Experts

The correct Answer is:
A
`Br^(3+)` and `Sn^(4+)` ions belong to the same group (group II). They cannot be separated by passing `H_(2)S` through the mixture solution in the presence of dilute HCl
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