| Test | Observation | Inference |
| Simple sugar a) Molish’s test b) Fehling’s test |
Purple colour observed at the interface Brick red precipitate formed |
+ + |
| Alkaloids a) Mayer’s test b) Dragendoff’s test c) Wagner’s test |
Cream precipitate formed Reddish brown precipitate formed Reddish brown precipitate |
++ ++ ++ |
| Saponin Frothing test |
Frothing formed |
+ |
| Cardiac glycosides a) Keller-killani’s test b) Salkowski’s |
Brown ring colour is formed Reddish-brown colour at the interface formed |
+ ++ |
| Polyphenol Ferric chloride |
Colour change observed |
+ |
| Tanins Ferric chloride |
Brownish green precipitate |
+ |