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Question
Match the terms given in Column I with the compounds given in Column II.
| Column I | Column II |
| (i) Acid rain | (a) CHCl2 – CHF2 |
| (ii) Photochemical smog | (b) CO |
| (iii) Combination with haemoglobin | (c) CO2 |
| (iv) Depletion of ozone layer | (d) SO2 |
| (e) Unsaturated hydrocarbons |
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Solution
| Column I | Column II |
| (i) Acid rain | (c) CO2, (d) SO2 |
| (ii) Photochemical smog | (d) SO2, (e) Unsaturated hydrocarbons |
| (iii) Combination with haemoglobin | (b) CO |
| (iv) Depletion of ozone layer | (a) CHCl2 – CHF2 |
Explanation:
(i) Acid rain is caused due to oxides of carbon, sulphur and nitrogen.
(ii) Photochemical smog is formed by unburnt fuel (unsaturated hydrocarbons).
(iii) Carbon monoxide with haemoglobin is poisonous.
(iv) Chlorofluorocarbons (CHCl2 – CHF2) cause ozone depletion.
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Match List - I with List - II.
| List - I | List - II | ||
|
(a) |
\[\ce{2SO2(g) + O2(g) -> 2SO3(g)}\] | (i) | Acid rain |
| (b) | \[\ce{HOCl(g) ->[hv] \overset{\bullet}{O}H + \overset{\bullet}{C}l}\] | (ii) | Smog |
| (c) | \[\ce{CaCO3 + H2SO4 -> CaSO4 + H2O + CO2}\] | (iii) | Ozone depletion |
| (d) | \[\ce{NO2(g) ->[hv] NO(g) + O(g)}\] | (iv) | Tropospheric pollution |
Choose the correct answer from the options given below.
The gas released during anaerobic degradation of vegetation may lead to ______.
Thermal power plants can lead to ______.
Higher concentration of which gas in the air can cause stiffness of flower buds?
