State the colour of
1) pure nitric acid
2)nitric acid obtained in laboratory
3)nitric acid obtained on the passage of air or addition of water
Dear student...
- Pure nitric acid is colourless.
- Nitric acid obtained in laboratory is pale yellow in colour due to decomposition into oxides of nitrogen and water
- Pale yellow colour of nitric acid disappears and hence it becomes colourless, on passage of air or addition of water.