Select the Most Energetically Favorable UV Transition for 1,3-Butadiene $\rightarrow$ $\sigma$

question 74

Multiple Choice

Select the most energetically favorable UV transition for 1,3-butadiene.

• A) "n \(\rightarrow\) \(\sigma\)*"
• B) "n \(\rightarrow\) \(\pi\)*"
• C) " \(\pi\)₂ \(\rightarrow\)\(\pi\)₃*"
• D) "\(\sigma\) \(\rightarrow\) \(\sigma\)*"
• E) " \(\pi\)₁ \(\rightarrow\)\(\pi\)₄*"

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Definitions:

Aromatic Ring

A stable, planar ring of carbon atoms interconnected by alternating single and double bonds, exhibiting delocalized π-electron cloud.

HNO3

Nitric acid, a highly corrosive and toxic strong acid used in the production of fertilizers, explosives, and in the production of other chemicals.

Reactivity

The inclination of a material to participate in chemical changes, alone or in combination with other elements, leading to the liberation of energy.

Chlorine

A highly reactive, greenish-yellow gaseous element used in water purification and the production of numerous chemicals.