Class 6 chemistry important questions with answers are provided here for Chapter 3 – Fibre to Fabric. These important questions are based on the CBSE board curriculum and correspond to the most recent Class 6 chemistry syllabus. By practising these Class 6 important questions, students will be able to quickly review all of the ideas covered in the chapter and prepare for the Class 6 annual examinations.
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Class 6 Chapter 3 – Fibre to Fabric Important Questions with Answers
Very Short Answer Type Questions
Q-1: Name two types of clothing that are commonly worn.
Answer: Cotton and wool
Q-2: Give the names of two natural fibres.
Answer: Silk and jute
Q-3: Sort the following materials into plant and animal fibres.
Wool, Silk, Cotton, Jute, Flax
Answer:
Plant Fibre: Cotton, Jute, Flax
Animal Fibre: Wool, silk
Q-4: Silk fibre is obtained from the cocoon of ___________.
Answer: Silkworm
Q-5: Name two methods for converting yarn into fabrics.
Answer: Weaving and knitting are the two methods for converting yarn into fabrics.
Q-6: What materials are used to make yarn?
Answer: Yarns are made of thin strands known as fibres.
Q-7: Which fibre do you believe absorbs the most water: nylon, cotton, polyester, wool, or silk?
Answer: Wool has a high water absorption capacity among all the fibres provided.
Q-8: What kind of soil is used to grow cotton plants?
Answer: Black soil is used to grow cotton plants.
Q-9: What is fabric?
Answer: Fabric refers to woven materials, textiles, and other materials that resemble woven cloth. Yarns are used to make fabric.
Q-10: What factors influence our clothing choices?
Answer: Climate, occupation, culture, and daily needs all influence the clothing we wear.
Q-11: Name the climate in which jute fibre is grown.
Answer: Jute fibre is cultivated during the rainy season.
Q-12: Give some examples of synthetic fibres.
Answer: Nylon, acrylic and polyester are some examples of synthetic fibres.
Q-13: Name the fibre used to make wicks for oil lamps.
Answer: Cotton fibre is used to make wicks for oil lamps.
Q-14: In which states are jute fibres primarily grown?
Answer: Jute is primarily grown in West Bengal, Bihar, and Assam in India.
Q-15: Name the plants that were grown near the river Nile in ancient Egypt.
Answer: Cotton and flax were cultivated near the Nile in ancient Egypt and were used to make fabrics.
Short Answer Type Questions
Q-1: List the steps involved in the preparation of the fabric.
Answer: Fabric preparation includes the following steps:
- Obtaining fibre
- Spinning yarn from fibres
Further, the fabric can be made from yarn using one or two major processes, which are listed below:
- Yarns are woven using looms to make fabric when two sets of yarn are used, and this process is known as weaving.
- Knitting is used to prepare fabric when only one yarn is used.
Q-2: List two applications of cotton.
Answer: The two applications of cotton are:
- Cotton can be used to make bed sheets, curtains, upholstery, and other items.
- Cotton oil is extracted from the seeds of the plant and refined for use as a cooking oil.
Q-3: Why are woollen clothes rough to the touch while rayon, nylon, and polyester are smooth?
Answer: Woollen fibres are rough due to the presence of many folds and uneven surfaces. Rayon, nylon, and polyester are all smooth due to their long, plain fibre structure.
Q-4: Why was primitive life restricted to the tropics? When was it possible for people to move to colder climates?
Answer: Primitive men and women had no concept of clothing and were at the mercy of their surroundings. Primitive life was mostly limited to the tropics, where the climate was mild, and no clothing was required. People were able to migrate to colder regions only after the invention of fire.
Q-5: When the stitching was unknown, how did people use the fabrics that were available to them?
Answer: When the stitching was unknown, people simply draped the fabrics around various parts of their bodies. Many different methods of draping fabrics were used.
Q-6: Describe the process of extracting fibres from yarn.
Answer: Spinning is the process of creating yarn from fibres. Fibres from a mass of cotton wool are drawn out and twisted in this process. This connects the fibres to form a yarn.
Q-7: What are the most important applications for jute?
Answer: The following are some of the important applications for jute fibres:
- Jute is widely used to make gunny bags, carpets, potato sacks, curtains, coarse clothes, and ropes, among other things.
- Nowadays, high-quality jute is also used to make jute fabrics.
Q-8: Define the following terms:
a) Retting
b) Knitting
c) Fibre
Answer:
a) Retting: The process of extracting fibres from the jute stem is known as retting.
b) Knitting: Knitting is a process that is typically done with a single yarn and knitting needles to create a piece of fabric.
c) Fibre: Fibres are thread-like materials used to make cloth or fabric.
Q-9: Distinguish between jute and cotton fibres.
| Jute | Cotton |
|---|---|
| Jute is primarily derived from the stems of jute plants. | Cotton is a fibre made from the stems of jute plants. |
| Jute grows primarily in areas with alluvial soil. | It is primarily grown in areas with black soil. |
| Jute is primarily grown in the Indian states of Bihar, West Bengal and Assam. | Cotton is primarily grown in Maharashtra, Punjab, Rajasthan and Gujarat in India. |
Q-10: Why are jute plants harvested while they are flowering rather than fully matured?
Answer: Jute plants are harvested during the flowering stage because the fibre produced is of high quality. When a plant matures completely, the fibres in its stem become extremely hard.
Long Answer Type Questions
Q-1: What are the three historical stages of clothing material development?
Answer: Cloth manufacturing evolved in three stages in terms of raw materials. The first stage was cloth made from plant fibres such as flax, cotton, nettles, and tree inner bark. The second stage saw the introduction of animal fibres, particularly wool and silk. China exported silk to various parts of the world.
The third stage of clothing history began in the late nineteenth century with the development of man-made or synthetic fibres such as rayon, nylon, and polyester. Man-made fibres combined with other animals, with or without plant fibres, are now used in clothing to improve strength, wearability, and other qualities.
Q-2: In which season is cotton planted? How does it grow?
Answer: It is planted in the early spring. Cotton plants grow steadily and quickly become bushes 3 to 6 feet tall. After about 2 months, they bear white or yellowish flowers that turn pink or red after a few days. The petals of the flowers fall, leaving behind tiny green seeds. Cotton balls then grow into a spherical shaped structure that grows into the size of a lemon.
Seeds and fibres grow inside the cotton balls as they grow. The green balls turn brown as they mature. When they reach full maturity, they are ready to burst open, revealing the white fibres. The fibres become fluffy as they dry in the sun.
Q-3: Distinguish between plant and animal fibres.
Answer:
| Plant Fibres | Animal Fibres |
|---|---|
| Plant fibres are obtained from plants. | Animal Fibres are obtained from animals. |
| Plant fibres have more strength. | Animal fibres have less strength. |
| They smell like grass when burnt. | They smell like hair when burnt. |
| They are made up of cellulose. | They are made up of proteins. |
| For example, Jute, Cotton | For Example, Silk, Wool |
Multiple Choice Type Questions
Q-1: From which of the following plant parts is jute fibre cultivated?
a) Branches
b) Roots
c) Stem
d) Leaves
Answer: c) Stem
Q-2: Which of the following is another term for hand spindle?
a) Takli
b) Charkha
c) Loom
d) None of the above
Answer: a) Takli
Q-3: What kind of clothes did Mahatma Gandhi encourage people to wear?
a) Jute
b) Khadi
c) Lungi
d) Cotton
Answer: b) Khadi
Q-4: Which of the following is a device on which weaving of fabric is done?
a) Handloom
b) Power loom
c) Paper Strips
d) Both a) and b)
Answer: d) Both a) and b)
Explanation: Looms are used to weave fabric. The looms are either hand-operated (hand looms) or power-operated (power looms).
Q-5: Which of the following is a method of turning cotton rolls into fibre?
a) Spinning
b) Ginning
c) Knitting
d) Weaving
Answer: b) Ginning
Explanation: The process of separating cotton fibres from their seeds (cotton rolls) is known as ginning.
Read Also:
- Fibre to Fabric
- Synthetic Fibres and Natural Fibres
- Natural Fibres
- Plant Fibres: Cotton and Jute
- Synthetic Fibres
- Chapter 3 – Fibre to Fabric Worksheet- Set -1
- Chapter 3 – Fibre to Fabric Worksheet- Set -2
- Chapter 3 – Fibre to Fabric Worksheet- Set -3
- Chemistry Concept Questions and Answers
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