Which of the following metal oxides is used to remove the sulphur oxides from flue gases?

Which of the following metal oxides is used to remove the sulphur oxides from flue gases? Correct Answer Calcium oxide

Among the given options, only magnesium oxide is preferred as an adsorbent. Activated carbon is not a metal oxide. Other metal oxides include alkalized alumina. Additionally, copper and cobalt oxides are also suitable adsorbents.
Bissoy MCQ

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