Structural Isomerism, Constitutional Isomerism - Organic Chemistry

In this video we want to discuss Structural or Constitutional Isomerism in Organic Chemistry.

Structural or constitutional isomers have the same molecular formula but different structural formula.

They are very different compounds with different names, physical and chemical properties.

We have 3 types of structural isomerism - chain, positional and functional group isomerism.

1. Chain Isomerism

Chain isomers differ in the way the carbon chain is branched.

Using C₅H₁₂ as an example, we can have a total of 3 chain isomers:

2. Positional Isomerism

Positional isomers have the same functional group but attached to a different carbon.

Using chloropropane as an example, the positional isomers are:

3. Functional Group Isomerism

Functional Group isomers have the same molecular formula but have different functional groups.

For instance C₆H₁₂, the two functional group isomers are hexene and cyclohexane.

For the detailed step-by-step discussion on the 3 different types of Structural Isomerism, check out this video!

Topic: Introduction to Organic Chemistry, Organic Chemistry, A Level Chemistry, Singapore

Back to other previous Organic Chemistry Video Lessons.

Found this A Level Chemistry video useful?

This free chemistry video lesson is brought to you by Chemistry Guru, Singapore's reputable A Level Chemistry tuition centre since 2010.

Please like this video and share it with your friends!

Join my 18,000 subscribers on my YouTube Channel for new A Level Chemistry video lessons every week.

Check out other A Level Chemistry Video Lessons here!

Need an experienced tutor to make Chemistry simpler for you?

Do consider signing up for my JC Chemistry Tuition classes at Bishan or online chemistry classes!