A positive brown ring test indicates the presence of? by Sunday | Aug 22 | Chemistry WAEC | 0 comments A. NO3 B. Fe3+ C. SO2¯³ D. CU+ E. NO2‾ Correct Answer: Option A – NO3 Users Also Read These:A normal supply curve has a positive slope which…The persistent Presence of glucose in a person’s…The gas that gives brown colouration in brown ring test is?A positive reaction to Fehling's test indicates the…Assuming that in sheep, the allele for black coat…