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Q: Which substances is obtained by heating coal in absence of air?
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What is carbonization of coal?

heating of coal in absence of air


How is coal turned into coke?

by heating the absence of air


What is coal carbonization?

coal carbonisation is the enrichment of coal properties. it is done by heating under absence of air


How is a charcoal made?

Charcoal is the black residue consisting of impure carbon obtained by removing water and other volaCharcoal is the black residue consisting of impure carbon obtained by removing water and other volatile constituents from animal and vegetation substances. Charcoal is usually produced by slow pyrolysis, the heating of wood, sugar, bone char, or other substances in the absence of oxygen (see pyrolysis, char and biochar). The resulting soft, brittle, lightweight, black, porous material resembles coal and is 50% to 95% carbon with the remainder consisting of volatile chemicals and ash.[1]tile constituents from animal and vegetation substances. Charcoal is usually produced by slow pyrolysis, the heating of wood, sugar, bone char, or other substances in the absence of oxygen (see pyrolysis, char and biochar). The resulting soft, brittle, lightweight, black, porous material resembles coal and is 50% to 95% carbon with the remainder consisting of volatile chemicals and ash.[1]


How coal tar is formed?

it is tough pours layer to surface the road


What are three substances that can be obtained from coal?

Coal can be composed of a number of different things, primarily carbon. Because "Coal" does not refer to a single element or group of elements, there is no specific answer to this question.


What is the difference between Hard coking coal vs soft coking coal?

Coke is made by heating coal in the absence of oxygen to about 2000 degrees Fahrenheit. Hard coking coal forms high-strength coke, while soft coking coal produces a lesser quality coke.


Why are people still using coal?

People still use coal because it satisfies lots of needs at an affordable rate. Coal is primarily used for heating purposes, but can also be used to make plastics, steel, coke (a hard, dry substance containing carbon that's produced by heating bituminous coal to a very high temperature in the absence of air), and electricity purposes.


When coal is heated in the absence of air what is the gas called?

coal tar


What is a solid substance left after heating coal or petrol?

i am a solid substance left after heating coal or petol


How is coal obtained?

By Mining


Do diamonds have more substances than coal?

no they dont, why because the substances in coal are more than diamonds if you compare them