Causes of Atmospheric Pollution Practice Questions

A candle burns in a plentiful supply of air.

Name the two products formed.

If the candle burns in a poor supply of air, carbon monoxide is also produced.

Explain why carbon monoxide released into a room is dangerous.

Name the pollutant gas that is formed when the sulfur in the coal burns.

Complete the table to give one problem caused by each pollutant released from the power station.

Balance the equation for the complete combustion of propane.

$\mathrm{C_3H_8} + \underline{\hspace{1cm}}\,\mathrm{O_2} \rightarrow \underline{\hspace{1cm}}\,\mathrm{CO_2} + \underline{\hspace{1cm}}\,\mathrm{H_2O}$

When the heater is used in a poorly ventilated space, the propane undergoes incomplete combustion. In one reaction the only products are carbon monoxide and water.

Write a balanced equation for this reaction.

The heater has air vents. Explain why blocked air vents make the heater dangerous to use.

Explain how soot is produced when diesel fuel burns in the engine.

Modern diesel cars are fitted with a filter that traps most of the soot before it leaves the exhaust.

Explain two problems that would be caused if this soot were released into the atmosphere.

Give the two products formed when fuel A is burned.

Name three pollutants that are released when fuel B is burned.

Fuel C produces only water when it burns. However, when fuel C is burned in an engine, oxides of nitrogen are still released.

Explain why.

A colourless liquid collected in the cooled test tube. The liquid turned white anhydrous copper sulfate blue.

Name the liquid and name the element in the fuel that it came from.

The limewater turned milky. Name the gas that caused this.

The student then partly closed the air hole on the burner. The flame became yellow and a black solid formed on the inside of the funnel.

Explain how the black solid was formed.

The teacher told the student to carry out the investigation in a fume cupboard.

Suggest why.

Calculate the mass of sulfur burned in the power station each day.

Give your answer in tonnes.

All of this sulfur is converted into sulfur dioxide, $\mathrm{SO_2}$.

Calculate the mass of sulfur dioxide produced each day, in tonnes.

Relative atomic masses ($A_r$): O = 16 S = 32

The power station fits equipment to its chimneys that removes 95 % of the sulfur dioxide from the waste gases.

Explain the benefit of this to the environment.

Explain the problems caused to human health and to the environment by the pollutants released from the ship's engine.

Do not refer to carbon dioxide in your answer.