Question 26 0/1 pts Which of the following compounds are aromatic based on the principles of the Huckel rule of aromaticity? 1 2 3 4 B. Molecules 1 and 3 C. Molecules 1 and 4 D. Molecules 2 and 4 A. Molecules 1 and 2 E. Molecules 3 and 4

Org. Chem. HW Please help thanks

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Which of the following species is NOT AROMATIC? (Note all species have a planar geometry) Select one: OA. IV OB. III OC. II OD. I O ¡HOLA! IV

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Many coloured dyes contain aromatic compounds that have two or more benzene rings. After long-term exposure to the sun, these dyes tend to fade. Propose an explanation for this phenomenon, taking into consideration the bonding nature of aromatic compounds.

1/ Show how the participating p orbitals interact to form the highest energy pi molecular orbital of benzene. 2/ Use the polygon rule to draw the MO energy diagram of the cyclononatetraenyl anion. Assuming planarity, would this ion be aromatic or antiaromatic?

Which of the following are consistent with the requirements for aromaticity?I. A system with delocalized p electrons in a ring.II. 4n p electrons in the ring.III. All the ring atoms must be carbons.IV. (4n + 2) p electrons in the ring.  Give the answer why.

nouncements CHM240-201 x Organic Chemistry C app.101edu.co 4 72"F Aktiv Chemistry HH OL Mail- Francesca A Tantillo-Out x NCHM 240 F22 Question 15 of 55 Using Cahn-Ingold-Prelog rules, rank these substituents from highest priority to lowest priority. B N A) ||| > | > || B) || > | > III C) II|| > || > | M D) || > ||| > | E) I>II>II N- x + P Update :) Submit 8:56 PM 9/11/2022

Compound A C,H10O2 Loni 90 80 70-1 60 50- 40 30- 20 10- to 4000 10 3500 3000 5 H 8 .. Mais 2500 Propose a structure frontend 2000 1800 1600 1400 1200 1000 800 2 H 3 :3 H 0 009