I'd say it was harder than any other chem4 paper, was getting 90+ easy on all of the past papers and I think I would have got an A* in this one too but ofc the thing i'm absolutely terrible at comes at the end for 9 marks, not even sure if I got an A in this paper now i'm pretty sure I lost 7/9 marks in that last question and who knows how many marks lost from random questions here and there.
I think the grade boundaries will definitely be lower than last year, 84/100 for A* 77/100 for A? that seems semi-fair.