Propene has the formula C3H6\mathrm{C_{3}H_{6}}C3H6. Its molecule is a chain of three carbon atoms and contains one double bond between two of the carbon atoms. All the other bonds are single bonds.
Each carbon atom forms four covalent bonds.
How many electrons are shared in covalent bonds in one molecule of propene?
8
9
16
18
60 exam-style questions on OCR GCSE Chemistry 2.3 Properties of materials, covering 2.3.1 Carbon bonding and the variety of organic compounds, 2.3.2 Diamond, graphite, fullerenes and graphene, 2.3.3 Bond strength, changes of state and predicting states, 2.3.4 Bulk properties and types of bonding, and 2.3.5 Nanoparticles: scale, surface area, uses and risks. Each one has a worked solution and a mark scheme showing where the marks go.