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Question

Which of the following reactions correctly represents the burning of magnesium?

A
Magnesium + Oxygen → Magnesium oxide + Heat + Light
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B
Magnesium + Oxygen + Water → Magnesium oxide + Heat
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C
Magnesium + Oxygen → Magnesium oxide + Water + Light
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D
Magnesium + Oxygen → Magnesium oxide + Light
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Solution

The correct option is A Magnesium + Oxygen → Magnesium oxide + Heat + Light

An essential condition for combustion is the presence of oxygen.
Magnesium burns in air in the presence of oxygen to produce magnesium oxide. During the process of combustion, heat and light are given out. Hence, the reaction of burning of magnesium can be represented as:
Magnesium + Oxygen → Magnesium oxide + Heat + Light

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