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A positive brown ring test indicates the presence of...

A positive brown ring test indicates the presence of

A.

NO ₃

B.

Fe ³⁺

C.

SO ^2-₃

D.

CU⁺

E.

NO^- ₂

View answer & explanation

Correct answer is A

Brown ring test is used for the detection of nitrate ions in a solution. As the name suggests it detects presence of nitrate ions by formation of brown ring

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