Explain the following terms with one example each corrosion

Asked by admin @ 20/08/2021 in Chemistry viewed by 332 People

Explain the following terms with one example each.

(a) Corrosion
(b) Rancidity
NCERT Class 10th Science Chapter 1 Chemical Reactions and Equations

Answered by admin @ 20/08/2021

Answer:

Explanation:) Corrosion:

Corrosion is defined as a process where materials, usually metals, deteriorate as a result of a chemical reaction with air, moisture, chemicals, etc.

For example, iron, in the presence of moisture, reacts with oxygen to form hydrated iron oxide.

This hydrated iron oxide is rust.

(b) Rancidity:

The process of oxidation of fats and oils that can be easily noticed by the change in taste and smell is known as rancidity.

For example, the taste and smell of butter changes when kept for long.

Rancidity can be avoided by:

1. Storing food in air tight containers

2. Storing food in refrigerators

3. Adding antioxidants

4. Storing food in an environment of nitrogen.

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