Chemical Engineering MCQs

6108 MCQs  (Page 108 of 611)

Iron ore hematite is concentrated using ____________________?
A. Electromagnetic separation mainly
B. Gravity separation
C. Froth floatation
D. Roasting
Which of the following is an unsaturated fatty acid ?
A. Lauric acid
B. Palmitic acid
C. Stearic acid
D. Oleic acid
High purity nitrogen is used in__________________?
A. Making protective gas (95% n2 + 5% h2) for annealing of cold rolled steel strip coils
B. Fire fighting purposes
C. Both a. & b.
D. Neither a. nor (b)
The main use of HCl is in the___________________?
A. Drilling of petroleum wells and pickling of steel sheets
B. Manufacture of cationic detergent
C. Treatment of spent fuel of nuclear reactor
D. None of these
The chamber process is______________________?
A. Preferred over contact process for producing 98 to 100% h2so4 and various oleums
B. Non-catalytic and operates only on pyrites
C. A batch process for directly producing high strength (98 to 100%) h2so4
D. None of these
Haemoglobin is a/an____________________?
A. Amino acid
B. Biological catalyst
C. Protein
D. Enzyme