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Compounds (C ) and (D) respectively are :A. `AgNO_3 and Hg(NO_3)_2`B. `AgNO_3 and Cu(NO_3)_2`C. `Pb(NO_3)_2 and Bi(NO_3)_3`D. `AgNO_3 and Bi(NO_3)_3` |
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Answer» Correct Answer - C `Pb^(2+)+2I^(-)toPbI_2 darr ` (yellow), insoluble in `NH_3` solution. `PbI_2 + 2I^(-)to [PbI_4]^(2-)`(soluble complex) `PbI_2` is moderately soluble in boiling water giving a colourless solution. `Bi^(2+)+3I^(-)to BiI_3 darr` (black) , `BiI_3 darr+I^(-) to [BiI_4]^(-)` (soluble complex) |
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