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A white powder when strongly heated give...

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)`

Text Solution

Verified by Experts

The correct Answer is:
D
`AgNO_(3)rarrAg+NO_(2)+(1)/(2)O_(2)`
`AgNO_(3)+KI rarr AgI +KNO_(3)`
`BaCl_(2)+2AgNO_(3)rarr2AgCl+Ba(NO_(3))_(2)`
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