CHEM219 / CHEM 219 Module 4:
(Latest Update 2025 / 2026) Principles of Organic Chemistry with Lab | Questions & Answers | Grade A | 100% Correct - Portage Learning
Question:
T/F The use of strong bases nucleophiles promotes substitution over elimination in most cases
Answer:
False
Question:
Determine if the following statement regarding substitution and elimination mechanisms are true or false
The first step in and Sn1 or E1 mechanism is the departure of the leaving group
Answer:
True 1 / 3
Question:
Determine if the following statement regarding substitution and elimination mechanisms are true or false
The first step in SN1 or E1 mechanism is the departure of the substrate
Answer:
False
Question:
Determine if the following statement regarding substitution and elimination mechanisms are true or false The first step in Sn2 or E2 mechanism is the departure of the leaving group
Answer:
False
Question:
Determine if the following statement regarding substitution and elimination mechanisms are true or false
The "2" in Sn2 means that this mechanism occurs in a series of steps
Answer:
False 2 / 3
Question:
Identify the stronger nucleophile in each pair below. Briefly explain your choice
- Hydroxide (-OH) vs Water (H2O)
- Hydroxide (-OH) vs bisulfide (-SH)
Answer:
- Hydroxide ion is stronger because of the negative charge it holds compared
to the water
- Bisulfide is stronger because Sulfur is larger and less electronegative than
oxygen
Question:
Classify the following solvents as protic or aprotic. Would this solvent enhance the rate of an Sn1 or Sn2 reaction?
Answer:
- Protic, Sn1
- Aprotic, Sn2
- Aprotic, Sn2
- / 3
D, Protic, Sn1