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Which of the following alkenes would have the largest l max ?

 Which of the following alkenes would have the largest lmax?


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Grade:upto college level

1 Answers

Kevin Nash
askIITians Faculty 332 Points
9 years ago
D) Alkyl substitution will increase ?max because the alkyl groups can stabilize the excited state by hyperconjugation resonance. Therefore the excited state will have a lower energy which translates to a longer wavelength. E = hc/?

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