Question

carbon monoxide is a colorless, odorless, tasteless, __________, and highly toxic gas.

a. flammable
b. nonflammable
c. high - temperature
d. low - temperature

Explanation:

Carbon monoxide (\(CO\)) is a gas that can burn in the presence of oxygen. The chemical reaction for the combustion of carbon monoxide is \(2CO + O_{2}\xrightarrow{\text{ignition}}2CO_{2}\). So it is flammable. Non - flammable means it does not burn, which is not the case for \(CO\). High - temperature and low - temperature are not typical adjectives used to describe the general property of \(CO\) in this context related to its basic physical and chemical nature as a gas.

Answer:

A. Flammable