CHEM 2612 PRACTICE ExAM 1 midterm exam will have 30 questions. They will be in t

Question

CHEM 2612 PRACTICE ExAM 1 midterm exam will have 30 questions. They will be in the format of this exam I d o not post answers because the point of a practice exam is for you to check your knowledge to re-read and understand the principles underlying any question about which you are ou have questions, see the tutor or I will be happy to point you in the right direction after class or during office hours. The SI tutor will hold a pre-exam help session as well. Refer to the structure shown in answering questions 1-3 1. The designation "A" in the figure points to a. A 1° carbon b. A 2 c. A 3° carbon e. None of the above. carbon d. a 4 carbon OH 2· The designation "D" in the figure a. indicates one of three methyl groups. b. indicates a 2° carbon. c. indicates the most easily oxidized position in the molecule. d. indicates the position anti to oxygen in the rotational isomer. e. None of the above is true. 3- The designation "B" in the figure a. points to a 3° carbon atom. b. indicates the only easily oxidized position in the molecule. c points to a carbon atom having the R-configuration d. All of the above are correct. e. None of the above is true. 4. Which of the structures shown is the most stable carbocation? CH3 CH3 CH3 5. Which of the compounds shown would react most rapidly with HCI? a. b. C. d. e. All would react at similar rates since each has one double bond.

Explanation / Answer

Ans 1 d) a 4o carbon

The carbon that has one group, two groups , three groups or four groups of atom attached are called as 1o , 2o , 3o and 4o carbons respectively.

The carbon labelled as A has four groups of atoms attached to it , so it is considered as 4o or quarternary carbon.

Related Questions

Navigate

• Browse (All)
• Browse C
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.