Incorrect statement among the following regarding ozone is-
1. In the stratosphere, it forms a protective shield against UV radiation.
2. It is a toxic gas and its reaction with NO gives NO2.
3. In the stratosphere, CFCs release chlorine-free radicals which react with O3 to give chlorine dioxide radicals.
4. In the atmosphere, it is depleted by CFCs.
Identify the incorrect statement from the following:
| 1. | Ozone absorbs the intense ultraviolet radiation of the sun. |
| 2. | Depletion of ozone layer is because of its chemical reactions with chlorofluorocarbon. |
| 3. | Ozone absorbs infrared radiation. |
| 4. | Oxides of nitrogen in the atmosphere can cause the depletion of ozone layer. |