Which of the following is NOT a property of asbestos?

The correct choice identifies a characteristic that is not associated with asbestos. Asbestos is known for its remarkable properties, which include exceptional electrical insulation, high tensile strength, and soundproofing capabilities.

Good electrical insulation is a well-documented property of asbestos, making it useful in insulating electrical components. Its high tensile strength allows it to withstand considerable stress without breaking, which is why it was historically used in construction materials and automotive parts. Additionally, asbestos has soundproofing capabilities, making it effective in reducing noise transmission.

However, asbestos is notably not highly flammable. In fact, it is classified as fire-resistant, which makes it a material commonly used in fireproofing applications. Its composition allows it to withstand high temperatures without contributing to the spread of flames, distinguishing it from most materials that would catch fire or burn. Therefore, describing asbestos as highly flammable is inaccurate and illustrates why this statement stands out as the exception among the properties listed.