Lesson Worksheet: Air Pollution Chemistry • 10th Grade
In this worksheet, we will practice describing the formation and hazardous consequences of common air pollutants.
Q1:
Which types of elements are often used to make catalytic converters?
- ATransition metals
- BAlkali metals
- CAlkaline earth metals
- DSemiconductors
- EMetalloids
Q2:
Which of the following chemicals do the unburnt hydrocarbons react with inside a catalytic converter to convert them into less harmful substances?
- APlatinum
- BNitrogen
- CCarbon dioxide
- DOxygen
- EWater
Q3:
Which of the following is not a potential effect of acid rain?
- ACorroding metal structures
- BDamaging trees
- CKilling plants in lakes and rivers
- DIncreasing the pH of soil
- EEroding buildings
Q4:
Which of the following statements explains how acid rain is formed?
- AWater vapor in the atmosphere reacts with sulfur dioxide creating acid rain.
- BUnburnt hydrocarbons from fuel bond to ice crystals high in the atmosphere, which then fall as acid rain.
- CIncomplete combustion of fossil fuels creates that reacts with water vapor creating acid rain.
- DWater evaporates from the oceans and forms clouds, which then falls as acid rain.
- ESunlight and heat cause changes to ozone to form in clouds creating acid rain.
Q5:
Which of the following fuels does not produce products that contribute to air pollution when burned?
- AHydrogen
- BPetrol
- CCoal
- DDiesel
- EMethane
Q6:
Which of the following equations shows how is removed from exhaust gases by a catalytic converter?
- A
- B
- C
- D
Q7:
Insufficient oxygen inside car engines can result in the production of carbon monoxide. What is the name of this chemical process?
- AComplete combustion
- BNeutralization
- CIncomplete combustion
- DDecomposition
- ECatalysis
Q8:
Which of the following is not a reason why new cars are built to produce less carbon monoxide than cars built in the 1960s?
- AEngine technology has improved over time.
- BCarbon monoxide is a toxic gas.
- CCars that produce less carbon monoxide accelerate more quickly.
- DScientists now understand more about carbon monoxide’s contribution to air pollution.
- ECatalytic converters are now fitted to new cars.
Q9:
As well as other gases, unburnt hydrocarbons are present in exhaust fumes and contribute to air pollution. Which of the following consequences is not related to unburnt hydrocarbons in exhaust fumes?
- AHealth problems
- BThe formation of smog
- CThe formation of acid rain
- DGlobal dimming
Q10:
What conditions are present in a car engine that enable the formation of compounds?
- AThe high temperature in the engine and the absence of air
- BThe absence of air and petrol or diesel acting as a catalyst
- CThe high pressure and petrol or diesel acting as a catalyst
- DThe acidic conditions and a spark from the spark plug
- EThe high temperature in the engine and a spark from the spark plug
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