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A white powder whenstrongly heated givesoff brown forms A solution of thispowder gives a yellow precipitate with a solution of KI when a solution of burium choloride is added to a solution a solution of powder a white precipitate results .Thiswhite powder may be

Answer»

A solution SULPHATE
Kbr or NaBr
`BA(NO_(3))_(2)`
`AgNO_(3)`

Solution :`AgNO_(3) rarr Ag + NO_(2) + (1)/(2)O_(3)`
`AgNO_(3) +KI rarr AgI + KNO_(3)`
`BaCI_(2) + 2ANO_(3) rarr 2AgCI + Ba(NO_(3))_(3)`


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