A. Hydrogen
B. Covalent
C. Ionic
D. None of these
Related Mcqs:
- In a linear polymer, the monomeric units are linked together to form long straight chains. The cross linked or branched chain polymers compared to linear polymers have higher ___________________?
A. Densities
B. Melting point
C. Tensile strength
D. Hardness, rigidity & brittleness - Which of the following types of polymers has the strongest inter particle forces ?
A. Elastomers
B. Fibres
C. Thermoplastics
D. Thermosetting polymers - 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?
A. Thermoplastic
B. Thermosetting
C. Elastometric
D. Brittleness - Nylon-6 as compared to nylon-66 is_________________?
A. Harder
B. More abrasion resistant
C. Having higher melting point
D. None of these - Nylon-6 as compared to nylon 66 has lower ?
A. Abrasion resistance
B. Thermal stability
C. Adhesion to rubber
D. Hardness - Nylon-66 compared to nylon-6 has __________________?
A. Lower melting point
B. More abrasion resistant properties
C. Higher hardness
D. All A., B. and C. - Polycaprolactam (Nylon – 6) is produced by the condensation polymerisation of caprolactam at 240-280°C in which the conversion of caprolactam is about ______________ percent?
A. 50
B. 75
C. 90
D. 99 - Caprolactam, a raw material for the manufacture of nylon-6, is produced from_______________?
A. Phenol
B. Naphthalene
C. Benzene
D. Pyridine - Condensation polymerisation of caprolactam is carried out in the reactor maintained at a temperature of __________ °C for producing nylon-6?
A. -20 to 25
B. 50 to 75
C. 100 to 150
D. 250-280 - In nylon-6, the number 6 represents the total number of_________________?
A. Carbon atoms in the ring
B. Carbon atoms in the linear polymer chain
C. Nitrogen atoms in the ring
D. Hydrogen atoms in the ring
