Cryolite, Na₃AlF₆, Is Used in the Electrolysis of Aluminum Oxide

question 36

Multiple Choice

Cryolite, Na₃AlF₆, is used in the electrolysis of aluminum oxide because

• A)it is a good source of fluoride ions.
• B)it reduces the energy requirement of the process, due to its low melting point.
• C)it provides a source of fluorine, an oxidizing agent.
• D)it provides a source of sodium, a reducing agent.
• E)it is very soluble in water.

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Definitions:

Embryonic

Pertaining to the embryo, the early stage of development in multicellular organisms.

Neonatal

Referring to the period shortly after birth, typically considered the first four weeks of life in humans.

Atherosclerosis

Arteriosclerosis characterized by irregularly distributed lipid deposits in the intima of large and medium-sized arteries.

Arteriosclerosis

The thickening and hardening of the walls of the arteries, often leading to restricted blood flow.