For each chemical formula below, an NMR spectrum is described, including relative overall areas (intensities) for the

Question:

For each chemical formula below, an NMR spectrum is described, including relative overall areas (intensities) for the various signals given in parentheses. Draw the structure of a compound having the specific formula that would give the described NMR spectrum. (Hint: All of these formulas represent organic compounds. Lewis structures for organic compounds typically have all atoms in the compound with a formal charge of zero. This is the case in this problem.)
a. C2H3Cl3; NMR has one singlet signal.
b. C3H6Cl2; NMR has a triplet (4) and a quintet (2) signal.
c. C3H6O2; NMR has a singlet (1), a quartet (2), and a triplet (3) signal.
d. C5H10O; NMR has a heptet (1), a singlet (3), and a doublet (6) signal.
e. C3H6O; NMR has a triplet (3), a quintet (2), and a triplet (1) signal.