Great job with the chart, I really like how the functional groups are color coordinated with the red, this makes it very clear and easy to understand the examples.

It would be beneficial if you added in content about the properties of the functional groups and provided more examples.

For example describe what an alkane is, that it is a carbon chain containing only single bonds, it can be found in a ring or chain and that they lack functional groups etc.

Additionally you should explain what 'R' means (that it represents and alkyl group)

Overall, you need some written explanations to back up your chart.