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13 March, 07:17

The reaction 2 Cu + O2 → 2 CuO has long been called an oxidation-reaction. Copper also reacts with chlorine:

Cu + Cl2 → CuCl2. In such a reaction:

a. Copper is also oxidized even though no oxygen is present.

b. Chlorine is oxidized.

c. Oxidation occurs, but reduction does not.

d. There is no change in oxidation numbers.

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  1. 13 March, 08:40
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    The reaction 2 Cu + O2 → 2 CuO has long been called an oxidation-reaction. Copper also reacts with chlorine:

    Cu + Cl2 → CuCl2. In such a reaction:

    A. Copper is also oxidized even though no oxygen is present.

    This is because if it gains electrons, it is reduced - however, you can see that it lost an electron, while chlorine gained one, which means that this is oxidization.
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