Which gas makes up the largest amount of smog around cities? sulfur oxides carbon dioxide carbon monoxide nitrogen oxides

sulfur oxides

Explanation:

Smog is a kind of severe air pollution which results due to accumulation of pollutants like nitrogen oxides, ozone, smoke, sulphur oxides and other particulates. These pollutants are added to the atmosphere through coal combustion, industrial emission, fires in agriculture field and forests and lastly because of photochemical reactions.

Among the gaseous pollutants the sulfur oxides are present in high amount as compared to other gases. As the sulfur oxides are released by the burning of fossil fuels. These oxides are the reducing agents which reacts with the oxygen present in the atmosphere result in the formation of a photochemical smog.

answer : one can design an experiment using a liquid and an additive that can be added to the liquid and observe the chemical changes in the reaction species.

one would need a beaker which is filled with a known amount of the liquid in which thermometer is placed to measure the temperature changes; after addition of the additive to the liquid solution one can note down the temperature change and find whether the reaction is endothermic or exothermic in nature. by subtracting the initial temperature value with the final temperature one can find the temperature changes.

various combinations of liquid and additive can be used. liquid in this case can be a known quantity of water and additives can be epsom salt or without epsom salt the experiment can be conducted to notice the changes. water and ice, hydrogen peroxide and dry yeast, vinegar and baking soda,etc.