Which of the Following Is Not an Important Use of Sodium

question 106

Multiple Choice

Which of the following is not an important use of sodium compounds?

• A)NaCl as a food preservative
• B)Na₂CO₃ in the manufacture of glass
• C)NaOH in the extraction of Al₂O₃ from ore
• D)NaI in the production of iodine
• E)NaOH in the manufacture of soap

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Definitions:

Permanent Magnet Motors

Electric motors that use permanent magnets rather than electromagnets to generate the magnetic field required for rotation.

Lightweight Rotors

Rotors designed to reduce the overall mass, enhancing the mechanical efficiency and response of a system.

Ceiling Fans

Mechanical devices mounted on the ceiling of a room, designed to circulate air to cool or ventilate the space.

Servomotors

Specialized motors equipped with a feedback mechanism for precise control of angular or linear position, speed, and acceleration.