A white powder when strongly heated gives of brown fumes. A solution of this powder gives and yellow precipitate with a solution

A white powder when strongly heated gives of brown fumes. A solution of this powder gives and yellow precipitate with a solution of KI. When a solution of barium chloride is added to the solution of powder , a white precipitate result . This white powder may be -
A. A soluble sulphate
B. KBr or NaBr
C. `Ba(NO_(3))_(2)`
D. `AgNO_(3)`

A white powder when strongly heated gives of brown fumes. A solution of this powder gives and yellow precipitate with a solution of KI. When a solutio

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