A quick introductory look at the alcohols

2 marks · Normal

State the functional group present in all alcohols. Give its displayed formula.

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The functional group is the hydroxyl group, −OH.

Also accept: –OH; OH group

Common mistakes: Giving general formula (CnH2n+1OH) instead of the functional group; Confusing with carbonyl group

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Marking points

B1 · 1 mark · States the name hydroxyl group or mentions –OH as the functional group

B2 · 1 mark · Correctly draws or writes the displayed formula as –OH

Worked solution

All alcohols have the hydroxyl functional group.

Its displayed formula is –OH.