As Conjugation Increases Across a Series of Molecules, Which of the Following

question 22

Multiple Choice

As conjugation increases across a series of molecules, which of the following statements is true?
I. The HOMO-LUMO gap becomes smaller.
II. The number of possible UV transitions increases.
III. Molecules absorb light at shorter wavelengths.
IV. Molecules absorb light of higher energy.

• A) I
• B) I, II
• C) I, III
• D) I, II, IV
• E) I, II, III, IV

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