ABCDMA ABCDMA last edited by
PLS EXPLAIN ALL
@ABCDMA-ABCDMA It's actually Rinmanns green ..there is a typo error
Cobalt nitrate test is an extension of charcoal cavity test. Charcoal cavity test is performed by mixing the given salt with sodium carbonate and heating the mixture on the block of charcoal with the help of blow pipe in reducing flame. The salt gets converted to respective oxides having characteristics colors.
In cobalt nitrate test a drop of cobalt nitrate solution is added in the residue left in charcoal cavity, it is heated in an oxidizing flame and the color of residue suggests cation.