In the laboratory preparation of oxygen, the gas cannot be collected by downward displacement of air because
the density of oxygen is greater than that of air
the density of air is nearly the same as that of oxygen
oxygen is a component of air
air is an impure substance
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B IS CORRECT...GO TO NEW SCHOOL CHEMISTRY ABABI0 PAGE 371 it is written boldly under the diagram of the preparation of oxygen....oxygen cannot be collected by the displacement of air cos its density is nearly thesame as that of of air
B is the answer,,,,Oxygen is slightly soluble in water so it can can be collected over water,,,,,,It cannot be collected by the displacement of air because its density is nearly the same as that of air.
GO TO NEW SCHOOL CHEMISTRY ABABI0 PAGE 371 it is written boldly under the diagram of the preparation of oxygen....oxygen cannot be collected by the displacement of air cos its density is nearly the same as that of of air
You guys never said downward displacement of air in the question, you just put "displacement of air" which is confusing since there is upward and downward displacement of air
