Which of the following substances is not a reducing agent?

Assessment: WAEC SSCE - Chemistry - 2020 (Objective) Subject: Chemistry

Question 1 Report

Which of the following substances is not a reducing agent?

Answer Details
A reducing agent is a substance that donates electrons to another substance in a chemical reaction. In other words, a reducing agent is oxidized (loses electrons) while another substance is reduced (gains electrons). Of the substances listed, the one that is not a reducing agent is O\(_2\). This is because oxygen is an oxidizing agent, meaning that it accepts electrons from another substance during a reaction. It does not donate electrons, so it cannot act as a reducing agent.

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