Accepts electrons and becomes reduced.

• A. Reducing agent
• B. Oxidizing agent
• C. Catalyst
• D. Electron donor

Answer: (B)

In redox chemistry, reduction means gaining electrons, while oxidation means losing electrons. The substance that accepts electrons and becomes reduced is the oxidizing agent. It pulls electrons away from another species (the reducing agent), causing the other substance to be oxidized.

So this statement matches the role of the oxidizing agent: it accepts electrons and is reduced. In contrast, a reducing agent donates electrons and is oxidized, a catalyst speeds up the reaction without being consumed in terms of oxidation state, and an electron donor describes the donor of electrons (the reducing agent) rather than the acceptor.