Chemistry Ii Block 2 Exam. Questions With Correct Answers. Latest 2024 Update.

CHEMISTRY II BLOCK 2 EXAM. QUESTIONS WITH CORRECT ANSWERS. LATEST 2024 UPDATE. A+ GRADED. 1. Which element contributes most to the total weight of the human body? a) Carbon b) Hydrogen c) Oxygen d) Nitrogen e) Calcium 2. Which of the following alkanes would have the highest boiling point? e) it is not possible to determine this based on the given information. A 3. What is the IUPAC name of the compound shown? a) 1,1-dimethyl-3-ethylcyclohexane b) 3,3-dimethyl-1-ethylcyclohexane c) 3-ethyl-1,1-dimethylcyclohexane d) 1-ethyl-3,3-dimethylcyclohexane e) none of the above 4. How are the following compounds related? a) They are isoelectronic species b) They are structural isotopes c) They are constitutional isomers d) They are stereoisomers e) These compounds are not related 5. How many valence electrons does an oxygen atom have? a) 2 b) 4 c) 6 d) 8 e) 16 6. Which of the following is the correct electron-dot structure formula for water? e) none of the above A 7. There are three constitutional isomers having the formula C5H12. Which of the following would be a correct IUPAC name for one of these isomers? a) propane b) 2-methylpropane c) 2,2-dimethylpropane d) 2-ethylpropane e) none of the above 8. What is the IUPAC name of the compound shown? a) 4,4-diethyl-6-propyloctane b) 4,4,6-triethylnonane c) 5-ethyl-3,5-dipropylheptane d) 4,6,6-triethylnonane e) none of the above 9. Which of the bonds, shown by the dash, has the greatest polarity? a) H-Cl b) H-NH2 c) H-OH d) H-SH e) H-H 10. What is the molecular geometry for CH4. a) linear b) trigonal planar c) tetrahedral d) pyramidal e) bent