'Organic' in chemistry means hydrocarbon. There are hundreds of combustible hydrocarbons. Nearly all organic molecules can burn in oxygen. Examples are:
CH4 - methane
C3H8 - propane
C6H6 - benzene
C8H18 - octane
It is not combustible, but it may burn many other materials
Example sentence - The combustible materials made the fire burn hotter.
All the organic compounds contain carbon but the most stable compound of carbon is carbon dioxide (and finally carbonate) on combustion carbon of organic compound is converted into carbon dioxide to gain the stability therefore organic compounds are inflammable.
Most metals are considered non-combustible. In addition refractory and other oxides such as magnesium oxide, titanium dioxide, Zirconium oxide and materials such as cement, concrete, clays, soils, sand and ceramics are all non-combustible. There are many other substances too.
These are impurities as organic compounds in different materials.
It is not combustible, but it may burn many other materials
when the the house are burning the fire move faster because of the combustible materials
Example sentence - The combustible materials made the fire burn hotter.
fossil fuels
You should refrain from putting electric heaters near combustible materials because heat emitted from the heater is capable of causing the combustible material to blow up or catch fire.
Most of the organic compounds are solids, combustible, non polar and insoluble in water.
coal
It is not combustible like some materials, but it can catch afire which is why many shops have separate shop vacs for titanium dust/chips.
All the organic compounds contain carbon but the most stable compound of carbon is carbon dioxide (and finally carbonate) on combustion carbon of organic compound is converted into carbon dioxide to gain the stability therefore organic compounds are inflammable.
self heating or pyrophoric materials
There are some simple requirments for something to be a convenient fuel - it must be abundant, easily collected and transported, cheap and ideally have a high calorific value per unit volume. Actually the question asked is wrong. Combustible subs. = Combustible materials all combustible subs./combustible materials are fuel but all fuel are not combustible subs/combustible material because fuel can also be an incombustible material/incombustible subs.
Most metals are considered non-combustible. In addition refractory and other oxides such as magnesium oxide, titanium dioxide, Zirconium oxide and materials such as cement, concrete, clays, soils, sand and ceramics are all non-combustible. There are many other substances too.