Explain the following terms with one example each.
(a) Corrosion
(b) Rancidity
(a) Corrosion
(b) Rancidity
Solution and Explanation
(a) 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.
4Fe + 3O2 + nH2O \(→\) 2Fe2O3.nH2O
(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 airtight containers
2. Storing food in refrigerators
3. Adding antioxidants
4. Storing food in an environment of nitrogen
Top Questions on Effects Of Oxidation Reactions In Everyday Life
- Explain the following in terms of gain or loss of oxygen with two examples each.
(a) Oxidation
(b) Reduction- CBSE Class X
- Science
- Effects Of Oxidation Reactions In Everyday Life
- Why do we apply paint on iron articles?
- CBSE Class X
- Science
- Effects Of Oxidation Reactions In Everyday Life
- Oil and fat containing food items are flushed with nitrogen. Why?
- CBSE Class X
- Science
- Effects Of Oxidation Reactions In Everyday Life
- Write one equation each for decomposition reactions where energy is supplied in the form of heat, light or electricity.
- CBSE Class X
- Science
- Effects Of Oxidation Reactions In Everyday Life
- A shiny brown coloured element ‘X’ on heating in air becomes black in colour. Name the element ‘X’ and the black coloured compound formed.
- CBSE Class X
- Science
- Effects Of Oxidation Reactions In Everyday Life
Questions Asked in CBSE X exam
- Who was Henry? What role did he play in Ausable’s plan?
(The Midnight Visitor)- CBSE Class X - 2024
- The Midnight Visitor
- The roots of the quadratic equation \(x^2 + x – p (p + 1) = 0 \)are :
- CBSE Class X - 2024
- Quadratic Equations
- The pH of an aqueous solution of a salt is 9. The types of acid and base from which this salt is formed are:
- CBSE Class X - 2024
- Acids, Bases And Salts
- The sum of two numbers is 18, and the sum of their reciprocals is $\frac{1}{4}$. Find the numbers.
- CBSE Class X - 2024
- Linear Equations
- The vertices of a quadrilateral ABCD are A(6, – 2), B(9, 2), C(5, – 1) and D(2, – 5). Prove that ABCD is a rhombus, and not a square.
- CBSE Class X - 2024
- Coordinate Geometry
Concepts Used:
Chemistry in Everyday Life
The scientific study of matter’s properties and behaviour is known as chemistry. It is a natural science that studies the elements that makeup matter, as well as the compounds, made up of atoms, molecules, and ions: their composition, structure, qualities, and behaviour, as well as the changes that occur when they mix with other things.
- Importance of Chemistry in Food - Chemicals are the fundamental components of everything. Chemical molecules make up all food, including carbs, vitamins, lipids, proteins, and fibre, which are all safe and often desirable.
- Importance of Chemistry in Medicines - Medicines or pharmaceuticals are chemical substances that are used to treat diseases and relieve pain. Chemistry has made significant contributions to health care. Chemistry, for example, aids in the manufacture and application of surgical materials.
- Importance of Chemistry in Cosmetics - In our daily lives, we use lotions, fragrances, talcum powder, and a variety of other cosmetic goods. All of these items are developed in laboratories using chemicals for our health and skin.
- Importance of Chemistry in Soaps and Detergents - Soaps are sodium and potassium salts of fatty acids with greater molecular weights, such as stearic acid, palmitic acid, and oleic acid. Sodium salts of long-chain alkyl hydrogen sulphates or sodium salts of long-chain alkyl benzene sulphonic acids are commonly used as detergents.