By the absorption of visible light, which of the following compounds gives smogy air and has brown tint?
Correct answer: D. ππ2
- A. NO
- B. ππ3
- C. ππβ3
- D. ππ2
Explanation
Nitrogen dioxide absorbs radiation in the ultraviolet (UV) and visible (vis) regions due to the electron transitions within the nitrogen dioxide molecule. It is a pungent gas that, along with fine airborne particulate matter, contributes to the reddish-brown haze characteristic of smoggy air.
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About s-Block and p-Block Elements
The s and p blocks are studied through their valence-shell configurations, periodic trends and characteristic chemical properties. Work covers the reactions of Group I and Group II elements, the behaviour of Group IV elements, and how atomic size, ionization energy, electronegativity and metallic character change across periods and down groups.
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