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Alcohols & ethers · Advanced

Draw 2-ethoxyethan-1-ol

Draw the skeletal structure of 2-ethoxyethan-1-ol, then check it. The checker compares the molecule you drew with the answer, so a correct structure is accepted however you draw it.

Draw it in the editor

How this exercise works

  1. Open the exercise in the editor and draw the structure: drag from dot to dot to draw bonds, and tap a bond or an atom to change it.
  2. Press Check answer. Equivalent drawings are accepted, and a mistake such as a missing carbon or a misplaced group is explained.
  3. Stuck? Hints reveal the structure step by step, and the worked answer explains the name.

This exercise has 3 hints and a worked answer.

How to read a name like this

The suffix -ol means an OH group on a carbon of the chain. The number before -ol is that carbon, and the chain is numbered to give it the lowest possible locant, before double bonds and substituents; -diol and -triol mean two or three OH groups.

Hydroxy- is the prefix form of the same group, used when a group that ranks higher gives the suffix. An ether is named with an alkoxy prefix such as methoxy- or ethoxy-: an oxygen bonded to the parent on one side and to another carbon group, usually the smaller one, on the other.

In the drawing the oxygen is written out: with its H in an alcohol, between two carbons and without H in an ether.

Learn the naming rules

The guide Alcohols and ethers explains the names in this topic, with worked examples.

All the exercises of this family, with a short summary of its naming rules: Nomenclature practice: Alcohols and ethers.

More exercises: Alcohols and ethers

Have a structure of your own?

Draw it on the free drawing page and see its name, formula and functional groups as you draw.