Please help with questions 4-10!!

4. Predict the chemical shifts for the protons indicated. 5. A shielded proton is considered to have a electron density surrounding it. (greater or lesser) 6. When comparing two nonequivalent protons, the more shielded proton will absorb relative to the other. (upfield or downfield) 7. When comparing two nonequivalent protons, the more shielded proton will have a chemical shift value relative to the other. (higher or lower) 8. Select the most shielded proton in 1,1,2-trichlorobutane. A) 1 B) 2 C) 3 D) 4 9. Assign the chemical shifts 81.6,82.2, and 84.8 to the appropriate protons of methylene cyclopentane. A) x=1.6;y=2.2;x=4.8 B) x=4.8;y=1.6;z=2.2 C) x=1.6;y=4.8;z=2.2 D) x=2.2;y=1.6;z=4.8 10. Choose the most upfield and most downfield proton for each molecule