In the laboratory preparation of oxygen, the gas cannot be collected by displacement of air because
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Correct Answer: Option A
Explanation:
Oxygen is collected in downward displacement of water because:-
Oxygen is only slightly soluble in water. Therefore, it can be collected over water without the fear of excessive dilution.
Oxygen is slightly heavier than air, so it cannot be collected over air.
Oxygen is collected in downward displacement of water because:-
Oxygen is only slightly soluble in water. Therefore, it can be collected over water without the fear of excessive dilution.
Oxygen is slightly heavier than air, so it cannot be collected over air.