A. Boiling
B. Condensation
C. Vulconization
D. Chain lengthening
Related Mcqs:
- The process wherein two or more chemically different monomers, each with some desirable property, can be combined to yield specific physical properties of a polymer is known as_____________?
A. Step-growth polymerization
B. Addition polymerization
C. Condensation polymerization
D. Copolymerization - The cross linking agent of polysulphide rubber base impression material is______________?
A. Aromatic sulfonate esters
B. Stannous octate
C. Platinum salt catalyst
D. Lead dioxide - Rubber base impressions are poured immediately as they_______________?
A. Continue to polymerize
B. Become elastic
C. Show imbibition and syneresis
D. Show gelation - Dimensional stability of elastomeric impression material can be given in descending order as_____________?
A. Polysulphide > polyether > Condensation silicone > Addition silicone
B. polyether > Condensation silicone > Polysulphide > Addition silicone
C. Addition silicone > polyether > Polysulphide > Condensation silicone
D. Addition silicone> Condensation silicone > Polysulphide > polyether - The greatest stress which may be produced in a material such that stress is directly proportional to the strain is know as_____________?
A. The elastic limit
B. The proportional limit
C. The yield strength
D. Modulus of elasticity - Streptococcus mutans produces an adhesive polymer from sucrose, known as:__________?
A. Levans
B. Lectins
C. Glucans
D. Polyfructans - The accepted polymer to monomer ratio for packing of polymethyl methacrylate resin is____________?
A. 3:1
B. 4:1
C. 10:1
D. 5:1 - Benzoin methyl ether in a polymer indicates that they may be cured in the presence of________________?
A. UV light
B. Visible light
C. Infrared light
D. Diketone - Deformation that is recovered upon removal of an externally applied force or pressure is known as_____________?
A. Young’s modulus
B. Plastic strain
C. Elastic strain
D. Flexural strain - By product of condensation reaction between silicone base and alkyl silicate in presence of tin octate_______________?
A. Ethyl alcohol
B. Glycol
C. Acetate
D. Propanolol
