Chemical Engineering MCQs

6108 MCQs  (Page 150 of 611)

Systemic insecticides________________?
A. Are absorbed throughout the plant
B. Kill insects following external bodily contact
C. Are stomach posions
D. Emit posionous vapour
Yeast is used in the manufacture of ____________________?
A. Penicillin
B. Antibiotics
C. Wine
D. Pasteurised milk
Soaps remove dirt by ____________________?
A. Increasing the surface tension
B. Decreasing wettability
C. Supplying hydrophilic group
D. None of these
A good quality coal should have ______________________?
A. Low fusion point of ash
B. High ash content
C. High sulphur content
D. None of these
Riboflavin is a/an____________________?
A. Vitamin
B. Analgesic drug
C. Anaesthetics
D. Anti-malarial drug