1.

Identify A

Answer»

`FE(NO_(2))_(3)`
`ZnBr_(2)`
`FeBr_(3)`
`ZnCI_(2)`

Solution :`underset((A))(FeBr_(3))+3AgNO_(3)tounderset((D))(Fe(NO_(3))_(3)+3AgBr darr` (light YELLOW ppt.)
`FeBr_(3)+3H_(2)SO_(4)tounderset((B))(Fe_(2)(SO_(4))_(3)+3Br_(2)`
`FeBr_(3)+3NH_(4)OHtounderset((C))(Fe(OH)_(3) darr)+3NH_(4)Br`


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