The assertion and the reason provided are partially correct.

Assertion: Magnesium ribbon does indeed burn with a dazzling white flame when exposed to air. This is due to the high reactivity of magnesium with the oxygen present in the air, which results in the production of a large amount of heat and light.

Reason: However, the reason provided is incorrect. When magnesium burns in air, it primarily forms magnesium oxide (MgO), not magnesium nitride. The reaction is as follows:

2Mg + O2 → 2MgO

The white substance that is formed is magnesium oxide, which is a white powdery substance. Magnesium nitride (Mg3N2) can be formed when magnesium burns in an atmosphere of nitrogen, but not in air.

Question

The assertion and the reason provided are partially correct.

Assertion: Magnesium ribbon does indeed burn with a dazzling white flame when exposed to air. This is due to the high reactivity of magnesium with the oxygen present in the air, which results in the production of a large amount of heat and light.

Reason: However, the reason provided is incorrect. When magnesium burns in air, it primarily forms magnesium oxide (MgO), not magnesium nitride. The reaction is as follows:

2Mg + O2 → 2MgO

The white substance that is formed is magnesium oxide, which is a white powdery substance. Magnesium nitride (Mg3N2) can be formed when magnesium burns in an atmosphere of nitrogen, but not in air.

Knowee AI · Accepted Answer

The assertion and the reason provided are partially correct.

Assertion: Magnesium ribbon does indeed burn with a dazzling white flame when exposed to air. This is due to the high reactivity of magnesium with the oxygen present in the air, which results in the production of a large amount of heat and light.

Reason: However, the reason provided is incorrect. When magnesium burns in air, it primarily forms magnesium oxide (MgO), not magnesium nitride. The reaction is as follows:

2Mg + O2 → 2MgO

The white substance that is formed is magnesium oxide, which is a white powdery substance. Magnesium nitride (Mg3N2) can be formed when magnesium burns in an atmosphere of nitrogen, but not in air.

Assertion: Magnesium ribbon burns with a dazzling flame in air.Reason: A white substance magnesium nitride is formed.

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