Class 11 Chemistry simulations · Organic Chemistry – Some Basic Principles and Techniques

Chain isomers of pentane (C₅H₁₂)

Compare the three structural isomers of C₅H₁₂ and their boiling points.

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What to notice

More branching gives a more compact molecule with less surface contact, so the boiling point falls.

Key relation

Same molecular formula, different carbon skeleton

Try this

Which isomer is a gas just above room temperature?

What you can change

• Isomer: 1 to 3

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