1. Which of the following molecules has NO net molecular dipole?
a. CH3OH
b. CH2O
c. CH3Cl
d. H2C=CH2
2. Which of the following molecules can hydrogen bond to another of the same compound?
a. CH3CH2OCH2CH3
b. CH3CH2COOCH3
c. (CH3CH2)2CHOH
d. CH3CH2COCH2CH3
3. What term best describes the relationship between the following two compounds?
CHCl=CHCl vs CCl2=CH2
a. same compounds
b. unrelated compounds
c. constitutional isomers
d. geometric isomers
The solution provides a detailed and step-by-step explanation for the problem.