

MCQOPTIONS
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1. |
A brown ring appears in the test for [EAMCET 1978; KCET 1991; Bihar CEE 1995; AIIMS 1996; DCE 1999] |
A. | Nitrate |
B. | Nitrite |
C. | Bromide |
D. | Iron |
Answer» B. Nitrite | |