A. Evaporation followed by vacuum distillation
B. Liquid extraction technique
C. Extractive distillation technique
D. None of these
Glycerine is recovered from lye by ___________________? Read More »
Chemical Process A. Penicillin
B. Streptomycin
C. Tetracycline
D. Quinine
Which of the following is not an antibiotic ? Read More »
Chemical Process A. Chemical
B. Biochemical
C. Photochemical
D. Electrochemical
Enzymes are organic catalysts used in the ____________________ reactions ? Read More »
Chemical Process A. Impart adhesive properties
B. Improve opacity
C. Impart resistance to penetration by liquids
D. None of these
Rosin soap is added during paper manufacture to____________________? Read More »
Chemical Process A. Caustic soda
B. Soda ash
C. Caustic potash
D. Soda lime
Solvay process is used for the manufacture of____________________? Read More »
Chemical Process A. Stiffen the leather
B. Smoothen the leather
C. Make it flexible
D. Impart water resistance
The purpose of tanning in leather industry is to____________________? Read More »
Chemical Process A. 30
B. 50
C. 70
D. 90
The amount of benzene present in pure Benzol is about _______________ percent ? Read More »
Chemical Process A. Soap
B. Detergent
C. Oil hydrogenation
D. Paint
Glycerine is a by-product of the ________________ industry ? Read More »
Chemical Process A. L.D. converter
B. Blast furnace
C. Rotary kiln
D. Recuperator
A. Slaked lime
B. Soda lime
C. Calcium perchlorate
D. None of these
