What is Ignition temperature ?1. The highest temperature reached on bu

1.	What is Ignition temperature ?1. The highest temperature reached on burning combustible material.2. The temperature at which crackers explode without being ignited.3. The lowest temperature at which a substance catches fire.4. The temperature at which a combustible substance is stored.
Answer» Correct Answer - Option 3 : The lowest temperature at which a substance catches fire. The correct answer is Lowest temperature at which a substance catches fire. The ignition temperature of a substance is the least temperature at which the substance starts combustion. Substances that spontaneously ignite in a normal atmosphere at naturally ambient temperatures are termed pyrophoric. The autoignition temperature is also known as the kindling point. The kindling point of a substance is the lowest temperature in which it spontaneously ignites in a normal atmosphere without an external source of ignition, such as a flame or spark. Autoignition temperature of some substances: Diesel - 210 °C Ethanol - 363 °C Gasoline (petrol) - 280 °C Vegetable oil - 424 °C

What is Ignition temperature ?1. The highest temperature reached on burning combustible material.2. The temperature at which crackers explode without being ignited.3. The lowest temperature at which a substance catches fire.4. The temperature at which a combustible substance is stored.

Answer» Correct Answer - Option 3 : The lowest temperature at which a substance catches fire.

The correct answer is Lowest temperature at which a substance catches fire.

The ignition temperature of a substance is the least temperature at which the substance starts combustion.
Substances that spontaneously ignite in a normal atmosphere at naturally ambient temperatures are termed pyrophoric.
The autoignition temperature is also known as the kindling point.
The kindling point of a substance is the lowest temperature in which it spontaneously ignites in a normal atmosphere without an external source of ignition, such as a flame or spark.