CO is poisonous
CO is readily oxidized at room temperature by air to form CO2
CO may be prepared by reducing CO2 mixed with coke heated to about 1000oC
CO may be prepared by heating charcoal with a limited amount of O2
CO is a good reducing agent
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Discussions (6)
If CO were readily oxidized then carbon monoxide pollution wouldn't be an issue as the CO in the atmosphere would be easily oxidized to the friendly CO2....but sadly, this isn't the case.
Let's break down each statement about carbon monoxide (CO) to find the one that's NOT true.
* A. CO is poisonous: This is TRUE. Carbon monoxide is indeed a very dangerous poison. It binds to your blood more strongly than oxygen, preventing your body from getting the oxygen it needs.
* B. CO is readily oxidized at room temperature by air to form CO2: This is FALSE. While CO can be oxidized to CO2 (carbon dioxide), it doesn't happen readily at room temperature. You usually need a spark or a flame to start the reaction. Think about how gas stoves use a flame to burn the natural gas and produce CO2.
* C. CO may be prepared by reducing CO2 mixed with coke heated to about 1000oC: This is TRUE. In industrial settings, carbon monoxide is made by reacting carbon dioxide with hot coke (a form of carbon).
* D. CO may be prepared by heating charcoal with a limited amount of O2: This is TRUE. If you burn charcoal (which is mostly carbon) with not enough oxygen, you get carbon monoxide instead of carbon dioxide.
* E. CO is a good reducing agent: This is TRUE. A reducing agent is a substance that can take oxygen away from other substances. Carbon monoxide is good at doing this.
Therefore, the statement that is NOT true is B. Carbon monoxide does not readily oxidize to carbon dioxide at room temperature.
