See page 223 in your text. We will be covering some of this material in lecture as well as in the lab lecture. The related material is, of course, in Chapter 18. See page 41 in the lab manual for molecular formulas for all three. Experiment 4 dealt with the strength of oxidizing agents.
Alcohol groups require a stronger oxidizing agent than aldehydes.
The copper ion in Benedict's reagent is considered to be a mild oxidizing agent. We discussed this oxidizing agent briefly in the chapter on aldehydes and ketones. See page 435 in the text. See page 535 in your text. See page 537 in the text.