Chemical Industries
The boiling point of bitumen is
270 °C to 340 °C
350 °C to 500 °C
500 °C to 600 °C
more than 500 °C
more than 500 °C
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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
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
The fifth step of the Solvay process is
A. preparation of ammonical brine
B. carbonation
C. preparation of carbon dioxide and slaked lime
D. recovery of ammonia
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