Drawing and naming esters
2 marks · HardName the ester formed from propanol and propanoic acid.
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propyl propanoate
Also accept: propan-1-yl propanoate
Common mistakes: Writing propanoic propanoate; Incorrectly reversing acid/alcohol order
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Marking points
M1 · 1 mark · Recognises correct ester naming: alcohol first, acid forms 'oate'.
A1 · 1 mark · Gives 'propyl propanoate' as the name (accept 'propan-1-yl propanoate').
Worked solution
The alcohol is propanol (gives 'propyl'), the acid is propanoic acid (gives 'propanoate').
The ester name is propyl propanoate.