CHEM 219 Organic Chemistry Modules 1–8 Problem Set Answers – Portage Learning 2026

CHEM 219
Principles of Organic Chemistry

MODULE 1 - 8 PROBLEM SET

Portage Learning

,The following document consists of the
following:
- Structural drawing and identification exercises

- Nomenclature practice questions

- Mechanism-writing and prediction of reaction products

- Stereochemistry assignments involving chiral centers and configuration descriptors

- Application-based problems requiring interpretation of reaction conditions and outcomes

,Contents
Module 1 Problem Set: ......................................................................................................................................................4

MODULE 2 PROBLEM SET: ..........................................................................................................................................13

MODULE 3 PROBLEM SET: ..........................................................................................................................................21

MODULE 4 PROBLEM SET: ..........................................................................................................................................31

Module 5 PROBLEM SET .................................................................................................................................................38

MODULE 6 PROBLEM SET ...............................................................................................................................................46

MODULE 7 PROBLEM SET ...............................................................................................................................................50

MODULE 8 PROBLEM SET ...............................................................................................................................................53

, Module 1 Problem Set:
ANSWERS IN


1. To help yourself, write out the Lewis Dot Diagram for each of the indicated elements on a
piece of scratch paper; determine the following for each and fill in the chart with your
answers:

A. The number of Lone Pairs the atom possesses in its valence shell.
B. The number of Unpaired Electrons the atom possesses in its valence shell.
C. The number of bonds the atom will form.
ANSWER:
1. Oxygen: A) 2 B) 2 C)2
2. Carbon: A) 0 B) 4 C) 4
3. Hydrogen: A) 0 B)1 C) 1
4. Nitrogen: A) 1 B) 3 C) 3




2. Classify the bonding between the given pairs of atoms as ionic, covalent, or polar covalent.
Use the table of electronegativities shown below to help with the classification.




ANSWER:

a. Br and Br = covalent


b. K and Cl = Ionic


c. P and Cl = Polar Covalent


d. C and O = Polar Covalent