Post-UTME Chemistry 2005 Objective — Question 11
Question 11 of 27 from the Post-UTME Screening (Post-UTME) Chemistry 2005 Objective paper, with the correct answer and a full explanation.
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A gas jar of air was placed on top of a gas jar of nitrogen IV oxide. After sometime, a uniform colour was seen throughout both gas jars. What process has occurred?
- A. evaporation
- B. oxidation
- C. decomposition
- D. diffusionCorrect
Explanation
The gradual mixing/spreading of gas molecules to achieve a uniform colour/concentration is diffusion.
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