Question

Magnesium is a non-combustible metal. (True / False). Also write the false statements in their correct form.

• A. True
• B. False

Answer 1

The correct option is B False

Non-combustible metal:-

1. It is actually a material that will not ignite or burn when it’s subjected to fire or heat.
2. When Magnesium is burned in the metal form, it will burn very easily in the air.
3. Reaction of Magnesium $\left(\mathrm{Mg}\right)$ burning in air:- $\underset{\mathrm{Magnesium}}{{\mathrm{Mg}}_{\left(\mathrm{s}\right)}}+\underset{\mathrm{Oxygen}}{{\mathrm{O}}_{2\left(\mathrm{g}\right)}}\to \underset{\mathrm{Magnesium}\mathrm{oxide}}{{\mathrm{MgO}}_{\left(\mathrm{s}\right)}}$
4. Magnesium $\left(\mathrm{Mg}\right)$ metal will need a source of energy, and the flame will provide as a source of heat so that Magnesium $\left(\mathrm{Mg}\right)$ metal atoms can overcome their activation energy.
5. It is a silvery-white alkaline earth metal and will burn with an intense light forming ash.

Therefore the above given statement:- 'Magnesium is a non-combustible metal' is false because, ‘Magnesium is a combustible metal’.