Petroleum Engineering Question:

Main constituent of natural gas is

A. CH4
B. C2H2
C. C2H4
D. C2H6

Option A

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Natural gasoline is produced A. from oil wells B. in oil refineries C. by natural gas stripping D. none of these	Raw Kerosene has a smoke point of 15 mm. After it is subjected to dearomatisation by liquid SO2 extraction (Edeleanu process), its smoke point may become __________ mm. A. 5 B. 10 C. 25 D. 100