Displayed formulae
2 marks · NormalDraw the displayed formula for butanol ().
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.
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Must show: Four carbons in a chain, OH group attached (linear, unbranched form), All carbons with four bonds, hydrogens filling remaining
Also accept: OH attached to any end or numbered carbon
Common mistakes: Missing hydrogens; Incorrect placement of OH group
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Marking points
M1 · 1 mark · Draws a four-carbon chain with an OH group attached to one carbon.
A1 · 1 mark · Each carbon has four bonds, hydrogens filling missing bonds, oxygen has two bonds.
Worked solution