Hi, can anyone help me and explain how the answers are arrived at on the Medprep sample Gamsat paper (science section) Unit 6 - Questions 23 & 24.

That would be a great help & thanks in advance!...I can manage the organic chem Q's...but this one is stumping me...

If I can help anyone with any of the others, just give me a shout!

Cheers!

Mx