Latest Update - (Latest Update) Principles of Organic Chemistry...

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

D, Protic, Sn1

• / 3