In the reaction: Fe + dilute H 2 SO 4 → FeSO 4 + H 2 , the element that acts as the reducing agent is:

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In the reaction: Fe + dilute H2SO4 → FeSO4 + H2, the element that acts as the reducing agent is:

Answer: Fe.

A H2SO4
B Water
C Fe
D H2

Correct answer: C. Fe

Explanation: Iron goes from 0 to +2 (loses electrons); it is oxidised and is the reducing agent. H⁺ is reduced to H₂.

Electron transfer in a redox reaction: zinc loses electrons (oxidised, acts as reducing agent) and copper(II) ions gain those same electrons (reduced, acts as oxidising agent).

Concept context

Master electron transfer in chemistry: assign oxidation states, balance half-reactions, identify oxidising and reducing agents, and connect redox to everyday reactions.

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In the reaction: Fe + dilute H<sub>2</sub>SO<sub>4</sub> → FeSO<sub>4</sub> + H<sub>2</sub>, the element that acts as the reducing agent is:

Concept context

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