Which of the Following Is Not True About [18]annulene

question 49

Multiple Choice

Which of the following is not true about [18]annulene?

• A) [18]annulene is planar
• B) [18]annulene is aromatic
• C) [18]annulene gives one peak in the ¹H NMR spectrum
• D) [18]annulene has 18 pi bonds

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Definitions:

Stained Cells

Cells that have been treated with specific dyes to highlight particular components under a microscope.

Posterior Lobe

The back part of an organ or gland, such as the posterior lobe of the pituitary gland in the brain.

Homeostasis

The process by which living organisms regulate their internal environment to maintain stable, life-supporting conditions.

Pars Intermedia

The intermediate lobe of the pituitary gland, involved in the production of melanocyte-stimulating hormone (MSH).