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A white powder when strongly heated giv...

A white powder when strongly heated gives off brown fumes. A solution of this powder gives a yellow precipitate with a solution of KI when a solution of barium chloride is added to a solution of powder, a white precipitate results .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:
4
`AgNO_(3)overset(Delta)rarrAg+NO_(2)+O_(2)`
`AgNO_(2)+KI rarrAgIdarr("yellow")+KNO_(3)`
`AgNO_(3)+BaCl_(2)rarrAgCldarr("white")+Ba(NO_(3))_(2)`
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