Question

what happens when wood is burnt in a limited supply of oxygen? Name the residue left behind after the reaction and state two advantages of using this residue as a fuel over wood.
Please, anyone, help me out. I have my preboards tomorrow!!!!!!

Answer 1

When wood is burn in a limited supply of oxygen it produces carbon monoxide. The resiude left behind is coal.

Answer 2

Answer:

when wood is burnt in limited supply of oxygen then it undergo incomplete combustion and releases carbon monoxide and charcoal is formed as a residue .

The advantages of the residue(charcoal) is :

1.I burns without flame and not releases any gases.

2.It has a high calorific value.

while wood on combustion releases harmful gases charcoal is a clean fuel.

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