Coating of the tin can be removed by ______.

The correct answer is Oxygen.

Key Points

• Coating of the Tin
  • Tin has many uses. It takes a high polish and is used to coat other metals to prevent corrosion, such as in tin cans, which are made of tin-coated steel. 
  • The Tin is removed with the help of oxygen and it is reused after removing the coating of tin on the metal as oxygen added removes it. Hence, Option 4 is correct.
  • Titanium nitride (TiN) coating is wear-resistant, inert, and reduces friction. Use it on cutting tools, punches dies, and injection mold components to improve tool life two to ten times, or more, over uncoated tools.
  • Medical device manufacturers use a TiN coating to reduce galling between sliding components, help retain sharp edges on surgical instruments, and differentiate their products from the competition.
  • The tiN coating is easily stripped from tool steels.  This makes TiN an ideal coating for applications that use expensive tooling such as injection molding and forming.

Additional Information

• A solvent
  • It is a substance that dissolves a solute, resulting in a solution.
  • A solvent is usually a liquid but can also be a solid, a gas, or a supercritical fluid.
• Hydrogen
  • It is the chemical element with the symbol H and atomic number 1.
  • Hydrogen is the lightest element in the periodic table.
  • At standard conditions, hydrogen is a gas of diatomic molecules having the formula H₂.
  • It is colorless, odorless, non-toxic, and highly combustible.
  • Symbol: H
  • Atomic mass: 1.00784 u
  • Atomic number: 1
  • Electron configuration: 1s1
  • Discoverer: Henry Cavendish