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How many of the following reagents give pure white precipitate with an aqueous solution of Ag(I) salt ? Concentrated `HCl, Kl, K_2CrO_4, Na_2CO_3,NaCN` (in small amount), `K_4[Fe(CN)_6]` |
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Answer» Correct Answer - 2 (a)With concentrated HCl precipitation does not occur. AgCl+`Cl^(-)to[AgCl_2]^(-)` (soluble complex) (b)`Ag^(+)+I^(-)toAgIdarr` (bright yellow) (c )`2Ag^(+)+CrO_4^(2-)toAg_2CrO_4darr`(red) (d)`2Ag^(+)+CO_3^(2-)toAg_2CO_3darr` (yellowish-white ) (e)`Ag^(+)+CN^(-)` (small amount ) `to AgCN darr` (white) (f)`4Ag^(+)+[Fe(CN)_6]^(4-)toAg_4[Fe(CN)_6]darr`(white) |
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