What is produced when steam is passed over red hot coke?
CO2 + H2
CO + O2
CO + H2
O2 + H2+ C
Which one of the following is NOT a fossil fuel?
Petrol
Coke
Charcoal
Coal
In destructive distillation, coal is heated strongly to about:
5000oc
1000oc
100oc
10,000oc
Which one of the following is a product of coal?
Paraffin wax
Diesel
What is the key resource for diesel?
Petroleum
Natural gas
None of these
The slurry residue after obtaining biogas is used as?
Pesticide
Manure
Insecticide
None
The process of heating coal in the absence of air is called
Fractional distillation
Distillation
Destructive distillation
Renewable sources of energy are produced in nature?
Biennial
Annually
Continuously
Quarterly
What is the main constituents of petroleum gas?
Butane
Propane
Methane
Ethane
What is known as carbonisation?
Slow conversion of dead vegetation Into coal
Deposition of soil
falling of trees