1. | Photochemical smog is harmful to humans but has no effect on plants. |
2. | Plants like Pinus, Juniparus can help in reducing the photochemical smog. |
3. | Photochemical smog occurs in warm, dry, and sunny climates. |
4. | Common components of photochemical smog are ozone, nitric oxide, acrolein, formaldehyde, and peroxyacetyl nitrate. |
List-I | List-II |
(a) Biochemical oxygen demand | (i) Oxidising mixture |
(b) Photochemical smog | (ii) Polar stratospheric cloud |
(c) Classical smog | (iii) Organic matter in water |
(d) Ozone layer depletion | (iv) Reducing mixture |
(a) | (b) | (c) | (d) | |
1. | (i) | (iv) | (ii) | (iii) |
2. | (iii) | (iv) | (i) | (ii) |
3. | (iii) | (i) | (iv) | (ii) |
4. | (iv) | (iii) | (ii) | (i) |
Match List-1 with List-II
List-I | List-II |
(a). | (i). Acid rain |
(b). |
(ii). Smog |
(c). |
(iii). Ozone depletion |
(d). | (iv). Tropospheric pollution |
Choose the correct answer from the options given below:
(a). | (b). | (c). | (d). | |
1. | (iv). | (iii). | (i). | (ii). |
2. | (iii). | (ii). | (iv). | (i). |
3. | (i). | (ii). | (iii). | (iv). |
4. | (ii). | (iii). | (iv). | (i). |
The incorrect statement about carbon monoxide is-
1. | It reduces the oxygen-carrying ability of blood. |
2. | The carboxyhaemoglobin (haemoglobin bound to CO) is less stable than oxyhaemoglobin. |
3. | It is produced due to incomplete combustion. |
4. | It forms carboxyhaemoglobin. |
Which oxide of nitrogen is not a common pollutant introduced into the atmosphere both due to natural and human activity?
1. N2O5
2. NO2
3. N2O
4. NO
The incorrect statement among the following regarding photochemical smog is:
1. | Carbon monoxide does not play any role in photochemical smog formation. |
2. | Photochemical smog is an oxidising agent in character. |
3. | Photochemical smog is formed through a photochemical reaction involving solar energy. |
4. | Photochemical smog does not cause irritation in the eyes and throat. |