100°, 134°
In the planar structure of the nitric acid molecule (\(\text{HNO}_3\)), the bond angle between \(\text{H-O-N}\) is approximately 102°, and the bond angle between \(\text{O-N-O}\) is around 130°. These angles are influenced by the electron repulsion around the nitrogen atom and the resonance structure of the molecule.
| Molisch's lest | Barfoed Test | Biuret Test | |
|---|---|---|---|
| A | Positive | Negative | Negativde |
| B | Positive | Positive | Negative |
| C | Negative | Negative | Positive |