Which of the following is an alkane?
Butene
Hexanol
Pentane
What is the general formula for an alkane?
CnH2n
CnH2n+2
CnH3n
What is the name of the alkane with the formula C3H8?
Methane
Ethane
Propane
What is meant by the term saturated, when applied to hydrocarbons?
Molecules containing at least one C=C double bond
That all carbon atoms are joined by C-C single bonds
Molecules containing carbon and hydrogen atoms only
Which of the following is an alkene?
C5H10
C4H10
C3H8
What is produced during the complete combustion of propane?
Water and carbon
Carbon monoxide and carbon dioxide
Carbon dioxide and water
What is seen when ethene is bubbled through bromine water?
A colour change from orange to colourless
A colour change from green to red
The bromine water goes cloudy
What is produced when bromine reacts with ethene?
Dibromoethane
Bromoethane
Why can combustion reactions of hydrocarbons be described as oxidation reactions?
The molecules gain electrons
The carbon and hydrogen atoms gain oxygen atoms
No air is present
Which of these could be formed by the addition of bromine (Br2) to propene (C3H6)?
C3H6Br2
C3H7Br