Question

WHAT IS IGNITION TEMPERATURE ?WHY ARE SUBSTANCES LIKE ALCOHOL AND PETROL CALLED INFLAMMABLE SUBSTANCES??

Answer 1

The minimum temperature at which the substance starts burning. Alcohol and petrol are called inflammable substances as they have low ignition temperature. They burn very quickly.

Answer 2

The lowest temperature at which a substance catches fire is called ignition temperature. Substances like alcohol and petrol are called inflammable substances as the ignition temperature of them is very low and it easily catches fire.