Q.1.
When we use hydrocarbons as fuels they produce particulates (small particles of solids e.g. soot). What environmental problem is caused by the release of these solids?
Q.2.
Which of these is the correct equation for the complete combustion of propane?
Q.3.
Which of the following is a product of burning hydrocarbons as fuels?
Q.4.
During the combustion of hydrocarbons, what happens to the carbon and hydrogen atoms?
Q.5.
16g of methane required 64g of oxygen to burn completely producing 44g of carbon dioxide. How many grams of water were produced?
Q.6.
Some properties of hydrocarbons depend on the size of their molecules. These properties influence how hydrocarbons are used as fuels. A hydrocarbon with 30 carbon atoms is unlikely to be used as a fuel in vehicles. Why not?
Q.7.
Soot is mainly particles of what?
Q.8.
There are environmental costs when using hydrocarbons as fuels. Using them in this way produces a number of pollutants. Which one of the following contributes to acid rain?
Q.9.
Which of the following is an alkane?
Q.10.
What is a hydrocarbon?