Official Answer Key & Detailed Solution
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Correct Answer: Option (D) — 1, 2 and 3
Concept & Option Breakdown
Standard Reference VerifiedCoal contains carbon, sulphur, and nitrogen compounds, and high-temperature combustion in air oxidizes atmospheric nitrogen as well. Consequently, coal-fired power plants emit Carbon dioxide (CO₂), Oxides of Sulphur (SO₂/SO₃), and Oxides of Nitrogen (NO/NO₂).
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