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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))_(3)`

D

AgNO_(3)`

Text Solution

Verified by Experts

`AgNO_(3)overset(Delta)toAgOunderset("Brown fumes")(+NO_(2))`
`AgNO_(3)+"Kl"tounderset("Yellow ppt.")(Agl+)KNO_(3)`
`AgNO_(3)+BaCl_(2)tounderset("Whitw ppt.")(AgCl+)BaNO_(3)`
Hence,(D) is the correct answer.
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