Read the chemical equation shown.

Cl2 + 2NaBr → 2NaCl + Br2

Which statement is true about this chemical equation?

Cl (chlorine) is oxidized and Br (bromine) is reduced.
Cl (chlorine) is reduced and Br (bromine) is oxidized.
Na (sodium) is reduced and Cl (chlorine) is oxidized.
Na (sodium) is oxidized and Br (bromine) is reduced.

Redox reactions are the reactions that have been constituting reduction and oxidation. In the chemical equation, chlorine is reduced and bromine is oxidized. Thus, option B is correct.

What is a redox reaction?

A redox reaction is a combination of reduction and oxidation reactions. When a reactant loses an electron, then it is called oxidation, whereas the reactant that gains an electron is said to be where the reduction takes place.

The redox reaction is written as,

2 NaBr (aq) + Cl₂ (g) → 2 NaCl (aq) + Br₂ (aq)

Here, oxidation,

2 Br⁻¹ - 2 e⁻ → 2 Br⁰

Reduction,

2 Cl⁰ + 2 e⁻ → 2 Cl⁻¹

From the reaction, NaBr is a reducing agent as it has donated its electron, whereas chlorine gas is an oxidizing agent as it has an accepted electron.

Therefore, in the chemical reaction chlorine is reduced and bromine is oxidized.

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