Question

if If an aqueous solution of is added of Pb2+ and Agt, the lead ion will precipitate. silver ion will remain in solution. is added to a mixture cereals S eries Goldies solche Wat luble compounds Compendo containing as a meal catis , Co the mi Insoluble exceptions Compounds in the NO C ocoon 1000 Compadog the chande och bumide relieve Compact the same 50/1 H or P Compounds eining Ag. Hạ, Pha”, x". Ba A. Na2CO3 B. NaF C. HS D. KBr E. Fe2(SO4)3 r ounds the cate p e COS the desde la IOM) Soluble exception C onds containing i Na.KR., NHL Compounds containing II. NK R., Be

Answer 1

Pb + 2 NaF = PbF2 (s) + 2 Na+

Ag + NaF = AgF(aq) + Na+

So NaF aqueous solution can be used and lead ion will precipitate out and silver ions doesn't

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