All of the Following Species Behave as Lewis Acids EXCEPT

question 83

Multiple Choice

All of the following species behave as Lewis acids EXCEPT ____.

• A) BH₃
• B) Al³⁺
• C) SO₂
• D) Al(OH)₃
• E) NH₃

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Definitions:

Umami

One of the five basic tastes, described as savory or meaty, due to the presence of glutamate.

Endorphins

Neurochemicals produced by the body that act as natural painkillers and mood elevators, often released in response to stress or exercise.

Pain Gate

A theoretical model explaining how non-painful sensations can interfere with pain signals traveling to the brain, effectively "closing a gate" to the perception of pain.

Spinal Cord

The cylindrical bundle of nerve fibers and associated tissue that is enclosed in the spine and connects nearly all parts of the body to the brain, forming the central nervous system.