18. Cyclooctatetraene readily reacts with potassium, resulting in an aromatic di

Question

18. Cyclooctatetraene readily reacts with potassium, resulting in an aromatic di-anion. Using Frost's circle, determine the number of electrons in non-bonding orbitals. 2- +2 K A) 0 B) 1 C) 2 D) 4 E) some other number 19. Benzene can be reduced to cyclohexane when it is treated with hydrogen in the presence of a nickel catalyst under conditions of high temperature and pressure. Predict the signs of 1° and AS° for this process. 20. What is the full IUPAC name of the compound below? A) dibenzylethene B) diphenylethene C) 1,2-diphenylethene D) (E)-diphenylethene E) (E)-1,2-diphenylethene

Explanation / Answer

20. IUPAC name of the compund is (E)-1,2-diphenylethene.

COmpund is in E configuration because groups of same priority are on different sides. If groups of same priority had been on same side, it would had been Z configuration.

[One question is done as per Chegg policy]

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