A few drops of concentrated HNO3 is added to an unknown solution and boiled for a while. If this produces a brown solution, the cation present is likely to be? by Sunday | Oct 10 | Chemistry JAMB | 0 comments A. Pb²+ B. Cu²+ C. Fe³+ D. Fe²+ Correct Answer: Option C – Fe³+ Users Also Read These:A solution of a salt was acidified with HCI when a…When a solution of ammonium trioxocarbonate (IV) is…When few drops of concentrated trioxonitrate(V) acid…When specimen X is mixed with few drops of iodine…A rock sample was added to cold dilute HNO3. The gas…