A scalet compound A is treated with concenbtrated `HNO_(3)`to gave a chocolate brown precipitate B. The precipitate is filtered and the filtrate is neurralised with NaOH Addition of KI to the resulting solution gives a yellow precipitate C the brown precipitate B on warming with concentrated `HNO_(3) `in the presence of `Mn(NO_(3))_(2)` produces a pink coloured solution due to the formation of D identify A, B,C, and D write the reaction sequence.

A scalet compound A is treated with concenbtrated `HNO_(3)`to gave a c

1.	A scalet compound A is treated with concenbtrated `HNO_(3)`to gave a chocolate brown precipitate B. The precipitate is filtered and the filtrate is neurralised with NaOH Addition of KI to the resulting solution gives a yellow precipitate C the brown precipitate B on warming with concentrated `HNO_(3) `in the presence of `Mn(NO_(3))_(2)` produces a pink coloured solution due to the formation of D identify A, B,C, and D write the reaction sequence.
Answer» A : `Pb_(3)O_(4) B : PbO_(2) C : PbI_(2)O_(4) B : Pb(MnO_(4))_(2)` The pink coloured compound is precipitate salt which is formed by the oxidation of maganese salt lead dioxide .The yellow precipitate to be red lead . `underset((A))(Pb_(3)O_(4)+)4HNO_(3)rarrunderset((B))(PbO_(2)darr)+underset("Filtrate")(2Pb(NO_(3))_(2))+2H_(2)O` `Pb (NO_(3))_(2) +2KI rarr underset("Yellow"(C))(PbI_(2)darr)+2KNO_(3)` `5PbO_(2) +2Mn(NO_(3))_(2) +4HNO_(3) rarr` `Pb(MnO_(4))_(2)+underset((D))(4Pb(NO_(3))_(2))+2H_(2)O`

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