A. Highly vulcanised rubber
B. Natural rubber
C. Unvulcanised raw rubber
D. Adhesive
Correct Answer: Highly vulcanised rubber ✔
Last Updated: March 08, 2019
Related MCQs
- 90% of the caprolactam is converted to nylon-6 on its condensation polymerisation in the reactor maintained at a temperature of __________ °C?
- Flexible plastic pipes are made of__________?
- Buna-S is also known as__________?
- Synthetic polymer produced by using terephthalic acid and ethylene glycol is __________?
- Which of the following polymers has the tendency of decomposing before melting ?
- Which of the following polymers is used for making a non stick coating on frying pans ?
- The organic acid monomer in nylon-66 is __________?
- Non sulphonated hard bakelites are not used for making __________?
- Density of high density polythene is about __________ gm/c.c ?
- Bakelite is a/an __________?
- Out of all the elastomers, natural rubber has the longest elongation range & flexibility of the order of __________ percent?
- Addition polymerisation takes place either by a free radical mechanism or ionic mechanism depending on the reagents used. Free radical polymerisation is catalyzed by __________, which decompose to give free radicals?
- The monomer of poly vinyl chloride (PVC) is__________?
- In nylon-66, the first and second numbers (i.e., 6) respectively designate the number of carbon atoms present in the__________?
- __________ is not a polyester fiber?
- Neoprene is rendered non-inflammable, because of__________?
- Thermosetting polymers as compared to thermoplastic polymers__________?
- Alkyd resin e.g., glyptal resin formed by Phthalic anhydride and glycerine is not used__________?
- Orion is__________?
- Temperature and gage pressure maintained during the manufacture of cold SBR (styrene butadiene rubber) are__________?
- Which of the following is the most important rubber compounding ingredient which is used to improve wearing qualities of both natural rubber & SBR by imparting toughness ?
- Vulcanisation of rubber decreases its__________?
- Viscosity of a polymer solution or melt __________?
- The rate controlling step in the manufacture of silicone rubber is the__________?
- Phosphates (e.g., tricresyl, tributyl, tetrabutyl, triphenyl etc.) are added to polymers to act as __________?
- A copolymer is formed by the combination of two or more monomer molecules__________?
- Maximum consumption of polymers is in__________?
- __________are produced by reacting polybasic acid (e.g. Phthalic anhydride) with polyhydric alcohol (e.g., glycerol) ?
- Addition of stabiliser during PVC manufacture is done to__________?
- Amino resins are used in paper treatment to improve its__________?
- Addition polymerisation is not involved in the manufacture of__________?
- Which of the following is not a thermoplastic material ?
- Nylon-6 as compared to nylon 66 has lower ?
- Identify the group in which all the polymers mentioned can be used to make fibres ?
- Nylon-6 is manufactured from __________?
- Epoxy resins (i.e., epoxide polymers) ?
- Which of the following polymers belong to the class of formaldehyde resin ?
- The monomer for the production of neoprene rubber is__________?
- Condensation polymerisation of formaldehyde with __________ does not produce phenolic resin?
- Perspex can be used as a substitute of glass. Its monomer is__________?
- Acrylonitrile-butadiene-styrene (ABS) copolymer, which is produced by blending styreneacrylonitrile copolymer with butadiene based elastomer, is a/an__________?
- Antioxidants are added to rubber to protect it from the attack of light, heat & atmospheric ozone. Which of the following is an antioxidant used in rubber ?
- Temperature and gage pressure maintained during the manufacture of hot SBR (styrene butadiene rubber) are__________?
- Glyptal used in the manufacture of paints & lacquers is a __________ polymer?
- Main constituent of cotton fiber is __________?
- Cation exchange resins (0.3 to 1 mm size) used in water treatment is prepared from __________ resins?
- Thermoplastic resins usually__________?
- Cross linked polymers formed from bi-and trifunctional groups in which cross-linkage in three dimensions via few chemical bonding across linear chains occur imparts to the polymer __________ properties?
- Low pressure Zeigler process of polythene manufacture__________?
- __________ practically possess no elasticity?
- Buna-S is a __________ material?