Drawing and naming the alcohols
2 marks · NormalState the molecular formula and the structural formula for ethanol.
(a)[1 mark]
Molecular formula
(b)[1 mark]
Structural formula
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(a) C2H6O
(b) CH3CH2OH
Common mistakes: Reversing the order of atoms
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Marking points
B1 (a) · 1 mark · States the molecular formula as C2H6O
B1 (b) · 1 mark · States the structural formula as CH3CH2OH
Worked solution
a) The molecular formula for ethanol is C2H6O.
b) The structural formula is CH3CH2OH.