Chemical Engineering MCQs

6108 MCQs  (Page 131 of 611)

Essential oils are usually obtained using__________________?
A. Steam distillation
B. Extractive distillation
C. Solvent extraction
D. Leaching
All enzymes are made of______________________?
A. Fats
B. Carbohydrates
C. Proteins
D. Amino acids
Sucrose is a disaccharide consisting of____________________?
A. Glucose and glucose
B. Glucose and fructose
C. Glucose and galactose
D. Fructose and galactose
Pasteurisation of milk means______________________?
A. Removal of fatty and albuminous substance from it
B. Killing of organisms present in it by heating it at controlled temperature without changing its
NatUral characteristics
C. Inhibiting the growth of micro-organisms without killing them
H2S is scrubbed from refinery gases by absorption using ________________________?
A. Dilute h2so4
B. Ethanol amine
C. Chilled water
D. Tri-butyl phosphate
Coke used for the production of calcium carbide should have____________________?
A. Low ash content
B. Low ignition temperature
C. High electrical resistivity
D. All a , b. and c.
Saponification number of an oil or fat____________________?
A. Gives an idea about its molecular weight
B. Is inversely proportional to its molecular weight
C. Detects its adulteration
D. All a , b. & c.