Question

what r combustible substances​

Answer 1

Answer:

the substance completely combustion (burn) in the presence of air gives heat, light and water

example:

substance are conc h2so4

Answer 2

Explanation:

Combustible substances: Those substances which undergo combustion or burn are called combustible substances. For example: Paper, cloth, cooking gas (LPG), CNG, Kerosene oil, wood, charcoal, etc. Non-Combustible substances: Those substances which do not undergo combustion are called combustible substances.