Drawing and naming the alcohols

2 marks · Hard

State the molecular formula for butan-1-ol. Then, state the number of carbon atoms in a molecule of butan-1-ol.

Work this out on paper, then compare with the answer and worked solution below. With a free account you can submit written answers for marking.

Show answer

Must show: C4H10O formula, 4 carbon atoms stated

Also accept: CH3CH2CH2CH2OH as structural formula (not as molecular formula)

Common mistakes: Incorrect number of carbons or hydrogens; Stating structural instead of molecular formula

Show mark scheme and worked solution

Marking points

A1 · 1 mark · Correctly writes the molecular formula for butan-1-ol: C4H10O

A2 · 1 mark · States there are 4 carbon atoms in a molecule of butan-1-ol

Worked solution

The molecular formula for butan-1-ol is C4H10O.

There are 4 carbon atoms in a molecule of butan-1-ol.