Which definition best describes an Explosive?

The definition that best describes an explosive is a mixture intended to produce an explosion. Explosives are typically defined by their ability to undergo a rapid chemical reaction that results in a significant increase in volume and release of energy in the form of gas and heat. This precise definition captures the essence of what explosives are designed to do—generate explosive force through their chemical properties.

Explosives can be composed of various chemical compounds that, when initiated, lead to an explosive reaction. This characteristic sets them apart from other related substances that may burn or decompose, but do not create the explosive reaction necessary for an explosive classification. The correct answer emphasizes the intentional formulation of the substances to create explosive outcomes, which is fundamental to their use in industries such as construction, demolition, and defense.