A. Give good glossy finish
B. Are same as varnish
C. Are prepared from non-drying oil
D. Do not contain pigment
Enamels______________________? Read More »
Chemical Process A. Addition of soda ash to it
B. Treating it with zeolites
C. Passing it through sodium hexametaphosphate
D. All A , B, and C.
Permanent hardness of water can be removed by_________________? Read More »
Chemical Process A. Polyurethane
B. Silicone
C. Teflon
D. Epoxy resin
A. Hypo
B. Bleaching powder
C. Plaster of Paris
D. Aqua regia
CaCl(OCl) is the chemical formula of___________________? Read More »
Chemical Process A. Can be readily oxidised
B. Pose problem in sewerage plant
C. Have an isoparaffinic structure
D. Should not be used as it spoils the cloth
Bio-degradable detergents ___________________? Read More »
Chemical Process A. Lead
B. Borosilicate
C. Soda lime
D. Alkali silicate
A. Bakelite
B. Teflon
C. Perspex
D. Nylon-6
Polymethyl methacrylate (PMMA) is known as ____________________? Read More »
Chemical Process A. Accelerate the oxidation of oil
B. Prevent gelling of the paint
C. Suspend pigments & dissolve film forming materials
D. Form a protective film
Function of thinner in a paint is to ______________________ ? Read More »
Chemical Process A. Sodium
B. Potassium
C. Both sodium & potassium
D. Aluminium or calcium
Metallic soap is ________________ salt of fatty acids ? Read More »
Chemical Process A. Diethyl-diphenyl-trichloromethane
B. Dichloro-diphenyl-trichloromethane
C. diphenyl-dichloro-trichloromethane
D. Dichloro-diphenyl-trichloroethane
DDT stands for___________________? Read More »
Chemical Process