Correct option is A
The correct answer is: (A). Oxidation
When a substance (in this case, magnesium from the ribbon) burns in the presence of oxygen, it reacts with oxygen to form an oxide. This is an example of an oxidation reaction because:
Oxidation refers to the process where a substance combines with oxygen, often resulting in an increase in the oxidation state of the substance. In this case, magnesium (Mg) reacts with oxygen to form magnesium oxide (MgO).
The reaction can be written as:
In this process, magnesium loses electrons (oxidized), and oxygen gains electrons (reduced), but the primary process here is oxidation of magnesium.
Other Options:
- Hydrogenation: This refers to the addition of hydrogen to a compound, usually in the presence of a catalyst, and is not related to burning in oxygen.
- Decomposition: This is a process where a compound breaks down into simpler substances, which is not happening in this case.
- Reduction: This involves the gain of electrons or a decrease in oxidation state, which is not the primary process here (though oxygen is reduced, the main process is oxidation of magnesium).
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