A. Hardness
B. Abrasion/resistance
C. Melting point
D. None of these
Related Mcqs:
- Dacron (or Terylene) fibres as compared to nylon fibres have__________________?
A. Better heat & acid resistant properties
B. Poorer resistance to alkalis
C. Poorer dyeability
D. All A , B. and C. - Nylon-66 is so named because the____________________?
A. Average degree of polymerisation of the polymer is 1966
B. Number of carbon atoms between two nitrogen atoms are 6
C. Number of nitrogen atoms between two carbon atoms are 6
D. Polymer was first synthesised in 1966 - Nylon-6 is manufactured from ______________________ ?
A. Caprolactam
B. Hexamethylene diamine and adipic acid
C. Hexamethylene diamine and Maleic anhydride
D. Hexamethylene diamine and Sebacic acid - Nylon-6 is a__________________?
A. Polyamide
B. Thermosetting resin
C. Polyester
D. None of these - 90% of the caprolactam is converted to nylon-6 on its condensation polymerisation in the reactor maintained at _____________ °C ?
A. < 0
B. 10-30
C. 250-280
D. 500-600 - Caprolactam (a raw material for nylon-6 manufacture) is produced from ___________________?
A. Phenol
B. Naphthalene
C. Benzene
D. Pyridine - Nylon-66 is manufactured from____________________?
A. Hexamethylene diamine and adipic acid
B. Hexamethylene diamine and Maleic anhydride
C. Caprolactam
D. Dimethyl terephthalate and ethylene glycol - In nylon-66, the first and second numbers (i.e., 6) respectively designate the number of carbon atoms present in the__________________?
A. Diamine and the ring
B. Dibasic acid and the ring
C. Diamine and the dibasic acid
D. None of these - Which of the following is an additional step in the manufacture of paper from bagasse as compared to that from bamboo ?
A. Depithing
B. Digestion
C. Bleaching
D. None of these - Fats as compared to oils have ___________________?
A. More unsaturated glycerides of fatty acids
B. Less unsaturated glycerides of fatty acids
C. Much higher reactivity to oxygen
D. Lower melting point
