A. Bakelite
B. Teflon
C. Perspex
D. Nylon-6
Related Mcqs:
- Bleaching powder (chemically known as calcium chloro hypochlorite) is commercially produced by the action of chlorine on ____________________?
A. Slaked lime
B. Soda lime
C. Calcium perchlorate
D. None of these - Grignard reagent is chemically known as ____________________?
A. Ethyl magnesium chloride
B. Methyl magnesium chloride
C. Dichlorophenol
D. Monochloroacetic acid - Penicillin is separated from fermented broth by ____________________?
A. Extraction with amyl or butyl acetate
B. Ternary Azeotropic distillation
C. Evaporator in calandria
D. Extractive distillation - Contact process of sulphuric acid manufacture ____________________?
A. Yields acid of higher concentration than chamber process
B. Yields acids of lower concentration than chamber process
C. Is obsolete
D. Eliminates absorber - Finely ground calcium aluminate & silicate is a/an ____________________?
A. Cermet
B. Cement
C. Abrasive
D. Explosive - A mineral is termed as ‘ore’, if ____________________?
A. A metal can be economically extracted from it
B. It contains ≥ 40% metal
C. The metal present in it is costly
D. All A , B. and C. - The end bleaching agent used to move last traces of colour bodies from the pulp is ____________________?
A. Chlorine dioxide (ClO2)
B. MgO
C. SO2 gas
D. Mercaptans - Calgon used in water treatment is chemically ____________________?
A. Sodium phosphate
B. Sodium hexametaphosphate
C. Calcium phosphate
D. Tricresyl phosphate - Anion exchanger is regenerated usually with ____________________?
A. NaOH
B. H2SO4
C. Hydrazine
D. Alum solution - Yeast is used in the manufacture of ____________________?
A. Penicillin
B. Antibiotics
C. Wine
D. Pasteurised milk
