Harmful and undesirable reaction of a metal when exposed to the atmosphere or any chemical agent is known as:
Correct answer: E. Corrosion
- A. Allotropy
- B. Electroplating
- C. Collision
- D. Cracking
- E. Corrosion
Explanation
The harmful and desirable reaction which occurs due to oxidation of the metal exposed to the surrounding air is called corrosion.
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About Biological Molecules
The chapter covers water's polarity and biological roles, carbohydrates, lipids, proteins and nucleic acids, including their monomers, bonds, structures and functions. It also distinguishes RNA from DNA and explains conjugated molecules such as glycoproteins, glycolipids and nucleoproteins, which combine organic molecules with a non-protein component.
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