Related Questions

Chain growth polymerisation is a process, in which the monomers are added in a chain fashion, and it requires an initiator to produce the free radical. An example of chain growth polymerisation products is
A Nylon-66
B Teflon
C Polyester
D Bakelite
The machanism involved in the removal of metal in drilling operation is by
A Compression
B Extrusion
C Shearing
D Both A & C
In condensation polymerisation as compared to addition polymerisation
A The monomers are unsaturated compounds
B No co-product is lost
C The monomers contain two functional groups
D Generally only one monomer is involved
In step growth polymerisation, condensation occurs in a stepwise manner with or without the elimination of smaller molecules. An example of step growth polymerisation product is
A Terylene
B Polybutadiene
C PVC
D Polypropylene
The amount of heat required to decompose a compound into its elements is __________ the heat of formation of that compound from its elements.
A Less than
B More than
C Same as
D Not related to
Removal of free radicals occur by
A Antioxidant
B Superoxide dismutase
C Transferrin
D Calcium
E Nitric Oxide
Free radicals
A May arise by absorption of radiant energy
B Antioxidants block free radical formation
C May cause peroxidation of lipids within plasma membrane
D Are not a byproduct of metabolism
E Can only form in the presence of oxygen
Free radicals are removed from the cells by the action of
A Superoxide dismutase
B Transferrin
C Glutathione
D Endonuclease
E Vitamin B12
Free radicals are generated
A During inflammation
B By enzymatic metabolism of drugs
C During normal metabolic processes
D By glutathione
E By ceruloplasmin
Free radicals are formed in the body
A By absorption of X-rays
B During metabolism
C By the formation of reactive oxygen species
D By superoxide dismutases
E By vitamin E

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