If you want official RJC material for H2
Chemistry, here's a tip : buy these books (instead of
lecture notes).
and 
Personally, I'd recommend you get both CS Toh's books
and the RJC books
above. That's what I give to all my BedokFunland JC students, plus
much more.
Only every alternate batch in RJ (in other words, those batches
for which Dr Chan is one of the tutors) uses the lecture notes
whose contents are adapted from these two books. Frankly, the books
are full of spelling and grammatical errors and I honestly do not
recommend them. My batch disliked Dr Chan's notes (and lectures,
but that's another matter altogether) a lot due to this.