Which of the following oxides is most acidic?
Correct answer: D. N2O5
- A. CO2
- B. CO
- C. BeO
- D. N2O5
Explanation
The correct answer is N2O5 because it is an acidic oxide that forms nitric acid when dissolved in water. CO2 is less acidic as it forms a weaker acid (carbonic acid) in water. CO is a neutral oxide and does not form an acid or base in water. BeO is amphoteric, meaning it can act as both an acid and a base, but it does not exhibit strong acidic properties.
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About Periodic Properties and Trends
Periodic properties arise from electron configuration and effective nuclear charge, producing trends in atomic and ionic radius, ionization energy, electron affinity, electronegativity, metallic character and reactivity. Comparisons run across periods and down groups, with attention to common exceptions. The topic also relates these trends to the behavior of s-block and p-block elements.
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