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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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