What Is the Correct Spelling for the Tube That Goes

question 23

Multiple Choice

What is the correct spelling for the tube that goes from the middle ear to the throat?

• A) ustashean
• B) eustashian
• C) eustachean
• D) eustachian

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Definitions:

Enantiomeric Epoxides

Chiral epoxides that are mirror images of each other but cannot be superimposed, important in asymmetric synthesis.

Meso Epoxide

A type of epoxide with a meso compound characteristic, making it optically inactive due to a plane of symmetry despite having chiral centers.

Meso Diol

A type of diol (a compound with two hydroxyl groups) that has chirality centers but is still optically inactive due to internal symmetry.

Cold KMnO

Potassium permanganate used in cold conditions, often in solution, for mild oxidizing reactions.