Concentrated nitric acid appears yellow, when it is left for a while in a glass bottle
Compounds (10)State one relevant reason: Concentrated nitric acid appears yellow, when it is left for a while in a glass bottle.
Answer
Concentrate nitric acid itself decomposes to form reddish brown or brown nitrogen dioxide gas which remains dissolved (imparts yellow colour to it). / or NO2 gas formed dissolves in the acid to give (yellow colour).
- Exam Year: 2020