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Final Marks with Comments

Question	Mark	Comment
1	6/10	Wrong answer to (ii)
2	5/10	Parts of answer not relevant or correct
3	0/10	(Not attempted)
4	7/10	No mention of c
5	8/10	Although 120° not explicitly mentioned, answer OK in (i); wrong condition in (iii)
6	10/10	Gave different, but correct, explanation to that expected
7	9/10	No mention of 2-fold axis
8	7/10	Wrong value for cell D, but method OK in (i); bit brief for (ii)
9	9/10	Very good, but no mention of two oxide phases in (i)
10	5/10	OK, but bit brief for part (i) and error in (ii)
11	2/10	Correct answer deleted in (i)!; wrong method in (ii)
12	5/10	Numerical error in (i) and wrong choice of hkl; correct idea in (ii), but wrong way round!
13	4/10	Parts (iii) and (iv) not attempted
14	0/10	(Not attempted)
15	7/10	Too brief for part (i)