Give the product expected (if any) when butyraldehyde (butanal) reacts with each of the following reagents. (a)

Question:

Give the product expected (if any) when butyraldehyde (butanal) reacts with each of the following reagents.
(a) PhMgBr, then dilute H3O+
(b) LiAlH4 in ether, then H3O+
(c) Alkaline KMnO4, then H3O+
(d) Aqueous H2Cr2O7
(e) NH2OH, pH = 5
(f) Ag2O
(g) Zn amalgam, HCl
(h) CH3C H==PPh3