1.

In the group III radicals, in place of NH_(4)Cl which of the following can be used

Answer»

`NH_(4)NO_(3)`
`(NH_(4))_(2)SO_(4)`
`(NH_(4))_(2)CO_(3)`
`NACL`

Solution :`NH_(4)^(+)` ions are required to suppress the ionization of `NH_(4)OH` ions are required to suppress the ionization of `NH_(4)OH` but SUFFICIENT to PRECIPITATE the III group RADICALS. `(NH_(4))_(2)SO_(4)` can't be used as `SO_(4)^(2-)` ions will precipitate `Ba^(2+)` as `BaSO_(4)`.


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