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Which set of gases is released into the atmosphere due to the burning of coal in a thermal power plant?
AHelium, neon and argon gases
BHydrogen, oxygen and ozone gases
CMethane, ethane and propane gases
DCarbon, sulphur and nitrogen oxides
Answer & Solution
Correct answer: D. Carbon, sulphur and nitrogen oxides
1. Burning coal emits gases that harm health.
2. These are oxides of carbon, sulphur and nitrogen.
3. The inert gases in option A are not combustion products of coal, so that is ruled out.
_Source: Balbharati (Maharashtra Board) Class 10 Science & Technology Part 2, Ch 5 "Towards Green Energy", p.59_
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