Give the product formed from the reaction of each of the following alcohols with
a. An acidic solution of sodium dichromate:
b. The reagents required for a Swern oxidation:
1. 3-pentanol
2. 1-pentanol
3. 2-methyl-2-pentanol
4. 2, 4-hexanediol
5. cyclohexanol
6. 1, 4-butanediol