Fill in the Blank Questions
Answers
Coal is a fossil fuel composed mainly of carbon along with
sulfur, nitrogen and hydrogen.
hydrogen,
nitrogen, sulfur
Coal was formed during the ________ period.
Carboniferous
Crude oil originated from marine organisms mainly during
the ________ era.
Paleozoic
Crude oil is primarily a mixture of hydrocarbons.
hydrocarbons
The main crude oil fractions from lowest to highest boiling
points include refinery gas, gasoline, kerosene, gas oil,
and residue.
gasoline, naphtha,
kerosene
Refinery gas is utilized as a fuel for domestic cooking and
producing hydrogen for other processes.
domestic
Gasoline is employed as fuel for car engines.
spark ignition
Kerosene serves in turbine engines and heating; it’s also
cracked to produce more petrol.
jet turbine
Gas oil is used in diesel engines and industrial heating; it’s
cracked for extra gasoline production.
industrial
Residue is processed into lubricating oils, waxes, and
thickened fuel for large furnaces called _____.
bunker fuels
Hydrocarbon performance as fuels is enhanced by
cracking and reforming.
catalytic reforming
Fill in the Blank Questions
Answers
Through cracking, long-chain alkanes are transformed into
alkenes and shorter-chain alkanes.
alkanes
Molecules with six or more carbons can be reformed at
570K over a platinum/alumina catalyst for use as highoctane fuels in petrol engines.
petrol engines