Polymer Technology Pickout the wrong statement. Polymers made of only one monomer is called homopolymer Polymers made of more than one monomer is called copolymer or mixed polymer The intermoleculer forces in ther-mosplastic polymers are intermediate to that of elastomers & fibres Vulcanised rubber is more elastic than natural rubber Polymers made of only one monomer is called homopolymer Polymers made of more than one monomer is called copolymer or mixed polymer The intermoleculer forces in ther-mosplastic polymers are intermediate to that of elastomers & fibres Vulcanised rubber is more elastic than natural rubber ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Most commonly used rubber vulcanisation agent is Sulphur Platinum Bromine Alumina Sulphur Platinum Bromine Alumina ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Size range of polymer molecules varies from __________ metre. 10⁻⁸ to 10⁻¹⁰ 10⁻² to 10⁻⁵ 10⁻¹ to 10⁻² 10⁻⁴ to 10⁻⁷ 10⁻⁸ to 10⁻¹⁰ 10⁻² to 10⁻⁵ 10⁻¹ to 10⁻² 10⁻⁴ to 10⁻⁷ ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Thermosetting resins/polymers as compared to thermoplastic ones are More brittle Formed by addition polymerisation only Easily reshaped & reused Soluble in all organic solvents More brittle Formed by addition polymerisation only Easily reshaped & reused Soluble in all organic solvents ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Antioxidants are added to rubber to protect it from the attack of light, heat & atmospheric ozone. Which of the following is an antioxident used in rubber? Alkylated diphenyl amine Carbon Magnesium Thiokol Alkylated diphenyl amine Carbon Magnesium Thiokol ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Amino resins are used in paper treatment to improve its Wet rub resistance Wet tear and bursting strength Folding endurance All of these Wet rub resistance Wet tear and bursting strength Folding endurance All of these ANSWER DOWNLOAD EXAMIANS APP
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