A. Are cross-linked molecules
B. Soften on application of heat
C. Are solvent soluble
D. None of these
Related Mcqs:
- ______________ is a thermosetting plastic?
A. Polyvinyl chloride
B. Polythene
C. Bakelite
D. Teflon - Thermosetting plastic materials____________________?
A. Can be repeatedly melted
B. Is useful for melt casting
C. Cannot be melted after forming
D. Is useful for spinning - ____________________ is a thermosetting plastic ?
A. Polythene
B. Epoxy polymer
C. P.V.C.
D. Polystyrene - Commercially ethylene is produced from naphtha by ______________________?
A. Catalytic cracking
B. Catalytic dehydrogenation
C. Pyrolysis
D. Hydrocracking - Catalyst used in the oxidation of benzene to produce Maleic anhydride is ______________________?
A. V2O5
B. Pt
C. Ni
D. Cr - Function of thinner in a paint is to ______________________ ?
A. Accelerate the oxidation of oil
B. Prevent gelling of the paint
C. Suspend pigments & dissolve film forming materials
D. Form a protective film - 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 - Sodium salt of higher molecular weight fatty acid is termed as the ______________________ soap?
A. Hard
B. Soft
C. Metallic
D. Lubricating - A good quality coal should have ______________________?
A. Low fusion point of ash
B. High ash content
C. High sulphur content
D. None of these - Sucrose content in cane sugar may be around ______________________ percent ?
A. 50
B. 70
C. 95
D. 80
