WAEC - Chemistry (2004 - No. 37)
WHICH OF THE FOLLOWING PETROLEUM FRACTIONS YIELDS VASELINE AND PARAFFIN WAX ON REDISTILLATION?
DIESEL OIL
LUBRICATION OIL
PETROL
KEROSENE
Објашњење
Lubricating oil, a fraction of crude oil on re-distillation produces the following: vaseline, fuel oil, paraffin wax, etc