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Question

Oxidation is ______.

A
when electrons are being lost and occurs at the cathode
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B
occurring at the cathode
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C
when electrons are being gained
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D
when electrons being lost and occurs at the anode
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E
occurring at the anode
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Solution

The correct option is D when electrons being lost and occurs at the anode
The term "redox" comes from two concepts involved with electron transfer - reduction and oxidation.

It can be explained in simple terms :

Oxidation is the loss of electrons or an increase in oxidation state by a molecule, atom, or ion. It occurs at the anode in the cell.

Reduction is the gain of electrons or a decrease in oxidation state by a molecule, atom, or ion. It occurs at the cathode in the cell

Hence, the correct option is D.

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