Polymers
Trending Questions
Q.
Rayon is a synthetic fibre but smells like burning paper.Why?
Q. Why are natural fibres blended with synthetic fibres?
Q.
Why is acrylic used to make sweaters and blankets ?
Q. Acrylic is made from the combination of
- None of these
- Coal, air and water
- Coal, air, water, oil and limestone
- Air, water, oil and limestone
Q.
Which type of synthetic fibre is used to make sweater and blankets and why ?
Q.
What is the difference between polymer and cellulose?
Q. The word 'polymer' means a single unit.
- True
- False
Q. Alex is confused between two shirts for his bonfire party. One is made up of cotton fibre and the other is made up of polyester fibre. Which one should he prefer to wear and why?
Q. The word 'polymer' means a single unit.
- True
- False
Q. Alex is confused between two shirts for his bonfire party. One is made up of cotton fibre and the other is made up of polyester fibre. Which one should he prefer to wear and why?
Q. Following are the properties of four materials P, Q, R, and S. Identify them and select the correct option regarding them.
P: It is a plastic which cannot be deformed and reshaped on heating.
Q: It is used in making sportswear due to its low moisture absorption property.
R: It is a thermoplastic with high resistance to wrinkles and used for making shawls.
S: It is important for making firemen uniform.
P: It is a plastic which cannot be deformed and reshaped on heating.
Q: It is used in making sportswear due to its low moisture absorption property.
R: It is a thermoplastic with high resistance to wrinkles and used for making shawls.
S: It is important for making firemen uniform.
- The material Q can be used for wiping the wet floor.
- The material S is thermoplastic which consists of linear monomer units.
- The material R closely resembles to silk.
- The material P is a thermosetting plastic which consists of cross linked monomer units.
