Natural & Synthetic Fibres — Homi Bhabha Class 6 Chemistry MCQs with Solutions
Free Homi Bhabha Class 6 Chemistry Natural & Synthetic Fibres MCQs with step-by-step solutions (10 questions). Part of Materials in Daily Use. Practise online on Prepizo — no login needed.
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Questions with solutions
Q1 — Natural & Synthetic Fibres · easy · theory
Which of these fibres is obtained from a plant?
A. Wool
B. Nylon
C. Silk
D. Cotton ✓ Correct
Solution: Cotton is a natural fibre that grows in the fluffy bolls of the cotton plant, so it comes from a plant.
Q2 — Natural & Synthetic Fibres · easy · theory
Wool, the fibre that keeps us warm in winter, is obtained mainly from …
A. The jute plant
B. The silkworm
C. Sheep ✓ Correct
D. The cotton plant
Solution: Wool is a natural fibre made from the soft, thick hair of animals like sheep, so sheep are its main source.
Q3 — Natural & Synthetic Fibres · easy · theory
Silk thread is obtained from the cocoon of the …
A. Spider crab
B. Goat
C. Silkworm ✓ Correct
D. Sheep
Solution: The silkworm spins a cocoon of fine thread around itself, and this thread is unwound to get silk.
Q4 — Natural & Synthetic Fibres · easy · theory
Which one of these is a synthetic (man-made) fibre?
A. Jute
B. Nylon ✓ Correct
C. Silk
D. Cotton
Solution: Nylon is made in factories from chemicals, so it is a synthetic fibre, while cotton, silk and jute are natural.
Q5 — Natural & Synthetic Fibres · medium · theory
Natural fibres come from plants and animals. Synthetic fibres like nylon and polyester are made in factories from …
A. Cotton plants
B. Chemicals obtained from petroleum ✓ Correct
C. The wool of sheep
D. Silkworm cocoons
Solution: Synthetic fibres are man-made from chemicals that come from petroleum (and coal), not from any plant or animal.
Q6 — Natural & Synthetic Fibres · medium · theory
Which natural fibre is used to make gunny bags (sacks) and thick ropes?
A. Nylon
B. Acrylic
C. Silk
D. Jute ✓ Correct
Solution: Jute is a strong, rough plant fibre, so it is used to make gunny bags and ropes rather than soft clothing.
Q7 — Natural & Synthetic Fibres · medium · theory
Polyester, nylon and acrylic are all examples of …
A. Natural fibres
B. Synthetic fibres ✓ Correct
C. Animal fibres
D. Plant fibres
Solution: Polyester, nylon and acrylic are all made by people from chemicals, so they are grouped together as synthetic fibres.
Q8 — Natural & Synthetic Fibres · medium · theory
Which fibre is chosen for cool, comfortable summer clothes because it soaks up sweat well?
A. Cotton ✓ Correct
B. Polyester
C. Nylon
D. Acrylic
Solution: Cotton absorbs sweat and lets air pass through, so it keeps us cool and comfortable in summer.
Q9 — Natural & Synthetic Fibres · hard · theory
After washing, nylon clothes dry much faster than cotton clothes. Why?
A. Nylon is much heavier than cotton
B. Nylon absorbs very little water ✓ Correct
C. Nylon is a natural fibre
D. Nylon is made from wool
Solution: Nylon soaks up hardly any water, so it holds less water after washing and dries quickly, unlike cotton which absorbs a lot.
Q10 — Natural & Synthetic Fibres · hard · theory
A piece of nylon melts and forms a hard round bead when heated, but a piece of cotton burns to a fine ash. What does this show?
A. All fibres are made from wool
B. Nylon is stronger than every metal
C. Cotton is a synthetic fibre
D. Synthetic fibres like nylon melt on heating, while natural fibres like cotton do not ✓ Correct
Solution: Synthetic fibres such as nylon soften and melt into a bead when heated, whereas natural cotton simply burns away to ash. This is one way to tell them apart.