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A chemical process applied during the instrument manufacturing process that provides a corrosion-resistant finish on instruments is

  1. Anodization

  2. Galvanization

  3. Passivation

  4. Vulcanization

The correct answer is: Passivation

Passivation is the correct answer because it is the chemical process applied during the instrument manufacturing process that provides a corrosion-resistant finish on instruments. Passivation creates a protective oxide layer on the surface of the metal instrument to prevent corrosion and enhance the longevity of the instrument. Anodization is a process that involves creating an oxide layer on metals such as aluminum through electrolysis but is not commonly used for instrument manufacturing finishes. Galvanization is the process of applying a protective zinc coating to steel or iron to prevent rust and corrosion, which is different from the process used for instrument finishing. Vulcanization is a chemical process for converting natural rubber or related polymers into more durable materials; it is not used for providing a corrosion-resistant finish on metal instruments.