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Testing for Gases

What are the General Tests for Carbon Monoxide Gas?

1)  Carbon monoxide gas, CO(g) has no colour or smell.

2)  Carbon monoxide gas has no effect on moist litmus paper
or moist universal indicator paper - it is neutral.

3)  Carbon monoxide gas burns with a blue flame
(this should not be confused with the yellow flame
produced during incomplete combustion of methane).

carbon monoxide  oxygen  arrow   carbon dioxide.
2CO(g)           +     O2(g)   arrow        2CO2(g)


What is the Specific Test for Carbon Monoxide Gas?

There is no specific test for carbon monoxide gas.
The burnt gas (see above) is carbon dioxide.
See the test for carbon dioxide gas.

Note - carbon monoxide is very poisonous.

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