1.

KI solution is the reagent for :

Answer»

`Hg^(2+)`
`Pb^(2+)`
`AG^(+)`
`CU^(2+)`

Solution :(A)`Hg^(2+)+2I^(-)toHgI_2darr`(red) , (B)`Pb^(2+)+2I^(-)toPbI_2darr`(yellow)
(C )`Ag^(+)+I^(-)toAgIdarr`(bright yellow) , (D)`Cu^(2+)+4I^(-)toCu_2I_2darr` (white) +`I_2`


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