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 known to be flammable. It can burn in the presence of oxygen. Non - flammable is incorrect as \(CO\) can participate in combustion reactions. High - temperature and low - temperature are not typical adjectives used to describe the general property of \(CO\) in this context. The property of being flammable is a well - known characteristic of \(CO\).

Answer:

A. Flammable