Saved Bookmarks
| 1. |
Concentrated nitric acid, upon long standing, turns yellow–brown due to the formation of(A) NO (B) NO2 (C) N2O (D) N2O4 |
|
Answer» (B) NO2 4HNO3 → 2H2 O + 4NO2 + O2 NO2 remains dissolved in nitric acid colouring it yellow or even red at higher temperature. |
|