Which of the following is primarily composed of $\mathrm{aromatic} \mathrm{hydrocarbons}$?

(i) Classify the following molecules as aromatic, nonaromatic, or antiaromatic.

(ii) For aromatic molecules, solve for n in Hückel’s rule. For all other molecules, explain which rule of aromaticity is being broken.

(c)

(i) Classify the following molecules as aromatic, nonaromatic, or antiaromatic.

(ii) For aromatic molecules, solve for n in Hückel’s rule. For all other molecules, explain which rule of aromaticity is being broken.

(e)

Which of the following is an aromatic hydrocarbon?

Which of the following is true regarding acetylene ($C_2{H}_2$) and benzene ($C_6{H}_6$)?

Which of the following compounds is aromatic?

Which of the following compounds is aromatic?

Which of the following compounds is aromatic?

Which of the following compounds is classified as an aromatic hydrocarbon?