Chemical Process Carbon content of pitch (residue of coal tar distillation) is around __________ percent. 80 94 70 55 80 94 70 55 ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Setting of plaster of paris is accompanied with Dehydration Hydrolysis Hydration Loss of CO₂ Dehydration Hydrolysis Hydration Loss of CO₂ ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Permanent hardness of water is due to the presence of calcium & magnesium Carbonate None of these Sulphates & chlorides Bi-carbonates Carbonate None of these Sulphates & chlorides Bi-carbonates ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Phenol formaldehyde Employs addition polymerisation Is a monomer Is an abrasive material Employs condensation polymerisation Employs addition polymerisation Is a monomer Is an abrasive material Employs condensation polymerisation ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Raw materials required for the manufacture of __________ is acetylene and hydrochloric acid. Maleic anhydride Dacron Phthalic anhydride Vinyl chloride Maleic anhydride Dacron Phthalic anhydride Vinyl chloride ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Bio-degradable detergents Have an isoparaffinic structure Can be readily oxidised Pose problem in sewerage plant Should not be used as it spoils the cloth Have an isoparaffinic structure Can be readily oxidised Pose problem in sewerage plant Should not be used as it spoils the cloth ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS