Question

name the gas which is produced due to incomplete combustion of fossil fuels

Answer 1

Carbon monoxide is produced because, in the limited space inside a gas heater (or a car engine), there is not enough oxygen to completely oxidize the hydrocarbon fuels. 

Answer 2

DEAR FRIEND,

Due to incomplete combustion of fossil fuels, the gas CARBON MONOXIDE is released.

The molecular formula of CARBON MONOXIDE is CO

This our answer.

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HAVE A NICE DAY!!