Coal & Petroleum MCQ | Class 8 Science Ch 5 Quiz
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Class 8 Science Chapter 5 Objective Questions
This MCQ test for Chapter 5 (Coal and Petroleum) checks understanding of fossil fuel formation, refining, fractions and uses, conservation, and environmental effects. It also covers CNG/LPG composition and safety.
In this test, the objective questions relate to:
- Coal processing: coke, coal tar, coal gas; carbonization
- Petroleum: fractional distillation, fractions and applications
- Natural gas: composition, CNG as cleaner fuel
- Conservation: efficient practices in transport and kitchens
- Environment: SO2, CO2, acid rain, greenhouse effect
Answer all 25 questions and review the score at the end to analyze preparation. Good luck!
Coal and petroleum are examples of:
They are available in limited quantities and can be depleted.
Coke obtained from coal is mainly:
Coke is a high-carbon fuel with few impurities.
The slow conversion of plant matter to coal is called:
Heat and pressure over millions of years convert plant remains into coal.
Petroleum formed primarily from:
Buried marine life decomposed under heat and pressure to form petroleum.
Separation of crude oil into fractions is done by:
Fractions separate due to different boiling point ranges.
Which fraction is used as aviation turbine fuel?
Jet fuel corresponds to the kerosene boiling range.
The chief component of natural gas is:
Natural gas is predominantly methane.
CNG stands for:
CNG is compressed natural gas for vehicles and domestic use.
Which petroleum residue is used for road surfacing?
Bitumen is a heavy residue used in roads and roofing.
LPG mainly contains:
Liquefied Petroleum Gas is largely propane and butane.
Which is NOT obtained from coal processing?
Petrol is from petroleum, not from coal destructive distillation.
Coal tar is:
Coal tar has many aromatic and polyaromatic compounds.
Which vehicle fuel emits the least particulates?
CNG burns cleaner with fewer particulate emissions.
A key environmental problem from burning coal is:
SO2 causes acid rain; CO2 contributes to global warming.
The literal meaning of petroleum is:
From Latin ‘petra’ (rock) and ‘oleum’ (oil).
Which practice conserves petroleum?
Shared transport reduces total fuel consumption.
Name the tall vessel used in refineries to separate fractions.
It provides temperature gradients for fractional distillation.
Coke is suitable for metallurgy because it:
Its high carbon and low ash make it effective in metal extraction.
Gas often found above petroleum deposits is:
Less dense natural gas forms a cap above oil reservoirs.
Identify the incorrect pairing:
Road surfacing uses bitumen; lubricating oil reduces friction.
A kitchen practice to save LPG is:
Clean burners improve heat transfer and reduce fuel use.
Fossil fuels are non-renewable because they:
Formation rate is far slower than consumption.
Destructive distillation of coal primarily produces:
Heating coal without air yields these three main products.
In a fractionating column:
Bottom is hotter; high-boiling fractions condense low in the tower.
Major gases from coal combustion include:
Sulfur dioxide and carbon dioxide are significant emissions from coal burning.
Your Result
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