i dont know the dehydration reaction or oxidation etc. there are no notes i can find. for example the answer to 4a in  https://www.cambridgeinternational.org/Images/164946-2016-specimen-paper... can you please help me with a list for example 

1. alcohol with H2SO4/H3PO4/Al2O3 gives etc. 

2.Oxidation with primary secondary and tertiary alcohols 

3. Reduction with LiAlH4 with COOH groups or OH or i dont know.

Also af=ddtion hydration. 

i know im asking for a lot but please help me your notes are always the best.