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- Explain why ethene does not react with HX ( X=Cl , Br or I) under normal conditions.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)?Rank the following starting materials in order of increasing rate of reaction (slowest to fastest) in an SN1 reaction. (Tos = tosylate): Br LOTOS OH 1 2 3 https://ibb.co/4JXsG1je O 1< 2 < 3 O 2 < 3 < 1 O 3<1< 2 O 1<3< 2 O 2<1<3
- Which of the following reactants undergoes a [3,3] sigmatropic reaction? А. он heat В. QH heat C heat D. A and CWhich of the following reactions will be faster and why? H₂O он Br Br H₂OPlace the product of each reaction in the next to conditions. Снз мамна гед THE DC H3CX CH3 вк вг Natt Et₂0,0°C? он Он ? HO (Racemic) HOQ1. Draw products of the reactions below ( addition to conjugated dienes): HOO ? HCI HI IThe clecona position of nitramide. ) Solutionat 25°C in.ayueous. NH2NO2 la)- has the Follacing reahonship between rate and concentrahionwhere the bracket anund thse formula indicates concentration and K is a Constant caled the rate constant. hate K [NH2NO2] IF the value of Kis l6.49x10s-1 rate of the reaction when MH,NO=0.3016M? -5 what is the Ms-SEE MORE QUESTIONS