QUESTION 4 CH;O In the substitution reaction: (S)-2-bromononane CH;OH The product(s) of the reaction is(are)? OCH, OCH; OCH3 OCH, A mixture of the major product c with the minor product d A equimolar mixture of b and c. O O0 O00

Plastic photochromic sunglasses are based on the following reversible rearrangement of a dye inside the lenses that occurs when the lenses are exposed to sunlight. The original dye absorbs UV light but not visible light and is thus colorless, while the rearrangement product absorbs visible light and is thus darkened. (a) Show the mechanism of the rearrangement. (b) Why does the rearrangement product absorb at a longer wavelength (visible light) than the original dye (UV)?

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Give IUPAC names for the following structures. When appropriate, abbreviate ortho (o), meta (m), and para (p), no italics, if you elect to use these terms. CH₂CH₂CHCHCHSCHCH₂ I T CH₁ CH₂ 1st structure: CH3 CH3 I 2nd structure: Submit Submit Answer Try Another Version OCH3 CH₂CCH₂ OCH3 10 item attempts remaining