Hydrogenation of oil takes place in a/an ____________________ reactor ?
(A) Autothermal
(B) Trickle bed
(C) Plug flow
(D) None of these
Salt is the basic raw material for the manufacture of____________________?
(A) Cement
(B) Glass
(C) Potteries
(D) Caustic soda
Glycerine is recovered from lye by ___________________?
(A) Evaporation followed by vacuum distillation
(B) Liquid extraction technique
(C) Extractive distillation technique
(D) None of these
Which of the following is not an antibiotic ?
(A) Penicillin
(B) Streptomycin
(C) Tetracycline
(D) Quinine
Enzymes are organic catalysts used in the ____________________ reactions ?
(A) Chemical
(B) Biochemical
(C) Photochemical
(D) Electrochemical
Rosin soap is added during paper manufacture to____________________?
(A) Impart adhesive properties
(B) Improve opacity
(C) Impart resistance to penetration by liquids
(D) None of these
Solvay process is used for the manufacture of____________________?
(A) Caustic soda
(B) Soda ash
(C) Caustic potash
(D) Soda lime
The purpose of tanning in leather industry is to____________________?
(A) Stiffen the leather
(B) Smoothen the leather
(C) Make it flexible
(D) Impart water resistance
The amount of benzene present in pure Benzol is about _______________ percent ?
(A) 30
(B) 50
(C) 70
(D) 90
Glycerine is a by-product of the ________________ industry ?
(A) Soap
(B) Detergent
(C) Oil hydrogenation
(D) Paint