For the last q do you think they will accept all the reactant atoms are present in the product? Ik its only one mark but i ****ed the empirical formula, counted 4 methyl groups when there were only 3 and dropped a couple of other silly marks as i sat the exam half asleep, so that one mark makes a major difference now
Is ecf on the empirical formula btw
Hope 59/60 is good for an A