In the Reduction of Alkynes Using Sodium in Liquid Ammonia

question 63

Multiple Choice

In the reduction of alkynes using sodium in liquid ammonia, which of the species below is not thought to be an intermediate in the commonly accepted mechanism?

• A) vinyl anion
• B) vinyl radical
• C) radical anion
• D) vinyl cation

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Definitions:

Primary Memory

Also known as short-term memory, it refers to the ability to hold a small amount of information in a conscious, easily accessible state for a short duration.

Chunking

A process by which individual pieces of information are bound together into a meaningful whole, often used to enhance memory retention.

Semantic Memory

A kind of permanent memory specifically for retrieving words, concepts, or numerals, imperative for understanding and applying language.

Autobiographical Information

Information related to one's own life and experiences, often stored as episodic memory.