Which material is commonly used as an adsorbent to eliminate nitrogen oxides from gases or air?

Chemical Environmental Engineering MCQs for PPSC, FPSC, NTS, and Pakistan government job tests. Select an option below, then read the explanation.

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Subject
Chemical Environmental Engineeringchemical-engineering › chemical-environmental-engineering-chemical-engineering
Published
11 Mar 2019
Last updated
28 May 2026

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Explanation

Among the listed substances, silica gel is effectively used as an adsorbent to remove nitrogen oxides from gas streams, whereas activated charcoal, bog iron, and pulverized limestone serve different purposes.

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