Drawing and naming the alcohols
1 mark · EasyWhat is the displayed formula for ethanol expected to show clearly between the oxygen and hydrogen atoms?
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a single bond (O–H bond) shown between oxygen and hydrogen
Must show: O–H bond shown
Also accept: bond between O and H
Common mistakes: writing just OH without a bond
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Marking points
B1 · 1 mark · States that a bond (O–H bond) must be shown between oxygen and hydrogen in the displayed formula.
Worked solution
The displayed formula for ethanol must clearly show the bond between the oxygen and hydrogen (O–H).