Flammability is the ability of a substance to ignite and burn. It is influenced by factors such as:

* Chemical structure: Organic compounds typically contain carbon and hydrogen, which readily react with oxygen to produce heat and light.

* Vapor pressure: Organic compounds often have higher vapor pressures, meaning they evaporate more easily, increasing the concentration of flammable vapors in the air.

* Boiling point: Lower boiling points allow organic compounds to vaporize more readily, making them more flammable.

Examples:

* Organic: Methane, propane, gasoline, ethanol

* Inorganic: Water, carbon dioxide, sodium chloride

Exceptions:

* Some inorganic compounds can be flammable: For example, white phosphorus and diethyl ether are highly flammable.

* Not all organic compounds are flammable: For example, some plastics and polymers have high melting points and low vapor pressures, making them less flammable.

In summary: While there are exceptions, organic compounds are generally more flammable than inorganic compounds due to their chemical structure, higher vapor pressures, and lower boiling points.