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Some pule green crystals are strongly heated .The gases then off are passed into a container surrounded by ice and then through a solution of acidified `KMnO_(4)` The `KMnO_(4)` is decolrised, a waxy white solid iws formed in the ice container this is dissolvesd in water .The solution willA. Give a precipitate with silver nitric solutionB. Give a precipitate with burium chloride solutionC. Turn red litmus blueD. Give blue colour with strach solution

Answer» Correct Answer - b
Assume green crystal of `FeSO_(4)`
`FeSO_(4) overset(Delta) to Fe_(2)O_(3) + SO_(2) + SO_(3)`
`SO_(3) + MnO_(4)^(Theta) rarr Mn^(2-) + SO_(4)^(2-)`
`SO_(3)` forms waxy white solid `(H_(2)SO_(4))` in ice container white is dissolved in water and gives `SO_(4)^(2-)` ion .When `BaCI_(2)` reacts `SO_(4)^(2+)` ion it forms ppt of `BeSO_(4)`


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