A reducing substance (or reductant) is a species that loses electrons in a redox reaction, causing another substance to be reduced while itself being oxidized. Iron can readily lose electrons to form Fe²⁺ or Fe³⁺ ions, thus acting as a reducing agent.
Which one of the following is a reducing substance?
Asked in UPSC CISF AC EXE 2017 · Topic: Inorganic Chemistry (Inorganic Reaction Mechanisms)
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