Polymer Technology The conversion of caprolactum in the above case is about __________ percent. 70 90 25 50 70 90 25 50 ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Caprolactum, a raw material for the manufacture of nylon-6, is produced from Pyridine Naphthalene Benzene Phenol Pyridine Naphthalene Benzene Phenol ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology In step growth polymerisation, generally only one type of reaction & some basic mechanism is involved. Step growth polymerisation reaction is not involved in the manufacture of Polyamides Phenol formaldehyde resins Cross linked polystyrene Polyesters Polyamides Phenol formaldehyde resins Cross linked polystyrene Polyesters ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Addition polymerisation takes place either by a free radical mechanism or ionic machanism depending on the reagents used. Free radical polymerisation is catelyzed by __________ , which decompose to give free radicals. Organic peroxides None of these Hydroflouric acid Sulphuric acid Organic peroxides None of these Hydroflouric acid Sulphuric acid ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology In nylon-6, the number 6 represents the total number of Carbon atoms in the ring Carbon atoms in the linear polymer chain Hydrogen atoms in the ring Nitrogen atoms in the ring Carbon atoms in the ring Carbon atoms in the linear polymer chain Hydrogen atoms in the ring Nitrogen atoms in the ring ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Condensation polymerisation of formaldehyde with __________ does not produce phenolic resin. Melamine Phenol Para-cresol Resorcinol Melamine Phenol Para-cresol Resorcinol ANSWER DOWNLOAD EXAMIANS APP
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