Carbon (ll) oxide may be collected as shown above because
A.
is heavier than air
B.
is less dense than air
C.
is insoluble in water
D.
burns in oxygen to form carbon (IV) oxide
Correct Answer: Option C
Explanation
Carbon monoxide (CO) gas is collected over water because it is relatively insoluble in water and less dense than water, allowing it to be collected by displacing the water in a container.
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