1.

In how many of the followingreactions, one of the products is obtained as a yellowprecipitate ? {:(Ba^(2+)+CrO_(4)^(2-),rarr,"Product"),(Hg^(2+)+Co^(2+)+SCN^(Θ),rarr,"Product"),(NH_(4)^(o+)+[PtCl_(6)]^(2-),rarr,"Product"),(Ag^(o+)+CrO_(4)^(2-),rarr,"Product"),(NH_(4)^(o+)+[Co(NO_(2))_(6)]^(3-),rarr,"Product"):}

Answer»


Solution :i. `BA^(2+) +CrO_(4)^(2-) rarr BaCrO_(4)` (yellow ppt)
ii. `Hg^(2+) + Cu^(2+)+4SCN^(THETA) rarr underset("deep blue pptcobalt tetetrucystals mecotue"(II))(Co(Hg(SCN)_(4)])`
III. `NH_(6)^(oplus) + [PbCI_(6)]^(2+) rarr underset(yellow ppt)(NH_(4)[Pt^(v)CI_(6)])`


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