Chemical Industries
Number of carbon atoms per molecule in bitumen are
14 to 20
20 to 50
50 to 70
more than 70
more than 70
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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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