Acid present in acid rain may be_________________?
Correct answer: C. both A and B
- A. H2SO4
- B. HNO3
- C. both A and B
- D. none of the above
Explanation
Sulfur dioxide and nitrogen oxides dissolve in atmospheric water and form sulfuric acid, H2SO4, and nitric acid, HNO3, respectively. Both acids can therefore contribute to acid rain. The likely mistake is selecting only sulfuric acid because sulfur dioxide is a well-known pollutant, while nitrogen oxides also produce an important acid component.
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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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