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Q2.1.4: The second criterium, which expects the whole molecule to be correct, includes the position of the double bond. Example: If a learners draws the correct structural formula for pent-2-ene, the learners gets one out of two. First mark is given for having the correct functional group. Second mark is lost because the position of the double bond is wrong; hence the whole molecule is not correct.
Q5.4: First calculation for number of moles is equal to 0,015 (not 0,15) and 0,015 must also be used in the second calculation where volume is calculated.
Q6.2: A square is needed in the Kc equation for the concentration of SO3; on pages 7 and 8.
Q9.3.3: Negative marking is applicable.
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