The gas that can be collected by downward displacement of air is?

Question: The gas that can be collected by downward displacement of air is?

The gas that can be collected by downward displacement of air is any gas that is denser than air. This is because denser gases will sink to the bottom of a container when they are released, displacing the lighter air and allowing the denser gas to be collected at the bottom of the container.

Some examples of gases that are denser than air and can be collected by downward displacement include carbon dioxide (CO2), which is commonly collected by this method in chemistry labs, and chlorine (Cl2), which is a highly reactive and toxic gas that is used in water treatment and industrial processes. Other examples of gases that are denser than air include sulfur dioxide (SO2), ammonia (NH3), and hydrogen sulfide (H2S), among others.

 

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