Chemical Industries
Which of the following used in paving roads and making roofing material?
diesel
lubricating oil
fuel oil
bitumen
bitumen
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Number of carbon atoms per molecule in kerosene isA. 1 to 4
B. 5 to 10
C. 8 to 12
D. 10 to 16
The raw materials for the Solvay process include
A. ammonia
B. brine
C. lime stone
D. all of above
Naturally occurring metallic compounds are called
A. metalloids
B. minerals
C. hard solids
D. soft solids
The process of converting minerals into oxides is called
A. smelting
B. reigning
C. roasting
D. Bessemerization
The boiling point of bitumen is
A. 270 ยฐC to 340 ยฐC
B. 350 ยฐC to 500 ยฐC
C. 500 ยฐC to 600 ยฐC
D. more than 500 ยฐC
Number of carbon atoms per molecule in Petrol is
A. 1 to 4
B. 5 to 10
C. 8 to 12
D. 10 to 16
The second step of the Solvay process is
A. preparation of ammonical brine
B. carbonation
C. filtration
D. calcination
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