Explosive gases are substances that can ignite and cause an explosion when mixed with air and exposed to a spark or flame. Common examples include methane, propane, and hydrogen. These gases are often used in various industries, but they can be dangerous if not handled properly. When explosive gases accumulate in a confined space, they can create a hazardous environment. Proper ventilation and safety measures are essential to prevent accidents. Understanding the properties of these gases helps in managing risks and ensuring safety in workplaces and homes where they are present.