The smog having high contents of SO2 is called:
Correct answer: D. Reducing smog
- A. Oxidising smog
- B. Neutral smog
- C. Basic smog
- D. Reducing smog
Explanation
Smog is a combination of smoke and fog. There are two types of smog: oxidising and reducing.Oxidising smog is also called photochemical smog and it consists of high concentration of oxidants like ozone.Reducing smog contains high contents of SO2; it is chemically reducing by nature. It gets oxidised to SO3 first and then dissolves in water to form H2SO4 to produce acid rain.Therefore, option D is the correct answer.
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