Question

Carbon monoxide and not carbon dioxide is highly poisonous gas

Answer 1

carbon dioxide is not that highy poisonous as carbon monoxide is.Carbon monoxide is formed as a result of incomplete combustion.When there is not enough oxygen to make co2.

C+O-----CO

carbon dioxide is not harmful.We exhale co2 and it is taken by plants.So there is no sort of harm.

C+O2------CO2

Hopes this helps you out.

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