Advertisements
Advertisements
प्रश्न
Define elastomer.
Advertisements
उत्तर
Polymers having the property of elasticity in which a substance gets stretched by external force and restores its original shape on the release of that force are called elastomers.
APPEARS IN
संबंधित प्रश्न
How are polymers classified on the basis of polymerisation process?
Answer the following.
Classify the following polymers as natural and synthetic polymers
- Cellulose
- Polystyrene
- Terylene
- Starch
- Protein
- Silicones
- Orlon (Polyacrylonitrle)
- Phenol-formedehyde resins
Answer the following.
What are synthetic resins? Name some natural and synthetic resins.
Answer the following.
Distinguish between thermosetting and thermoplastic resins. Write example of both the classes.
Answer the following
How is polythene manufactured? Give their properties and uses.
Attempt the following:
Classify the following polymer as straight-chain, branched-chain and cross-linked polymers.
Semisynthetic polymer among the following is ______________
Explain homopolymers with examples.
Define fibres.
Which of the following properties is of the thermosetting polymers?
Identify the monomers used in the preparation of glyptal.
The total number of electrons around the carbon atom of methyl tree radical are ______.
Which of the following statement is INCORRECT?
The monomers used in the preparation of dextron are ______.
Identify semisynthetic polymer.
Which of the following is INCORRECT regarding terylene?
Which among the following polymers is a copolymer?
Which among the following polymers belongs to the class elastomers?
Which among the following polymer is used to make crockeries?
Which among the following polymers belongs to class thermoplastic polymers?
Identity semisynthetic polymer from following.
Define Polymer.
Define homopolymer.
How are polymers classified into different categories on the basis of intermolecular forces? Give an example of a polymer of each of these categories.
