Question 1

How many s bonds and p bonds are present in a triple bond?

Accepted Answer

A) One s bond and one p bond. 
B) One s bond and two p bonds. 
C) Two s bonds and one p bond. 
D) Two s bonds and two p bonds. 
A) One s bond and one p bond. 
B) One s bond and two p bonds. 
C) Two s bonds and one p bond. 
D) Two s bonds and two p bonds.

Question 2

What is the reagent required to accomplish the following transformation?

Accepted Answer

A) SOCl2 
B) 2eq.HCl 
C) Cl2 
D) Br2/CCl4 
A) SOCl2 
B) 2eq.HCl 
C) Cl2 
D) Br2/CCl4

Question 3

Which of the indicated hydrogen in the following compounds is the most acidic?

Accepted Answer

A) I 
B) II 
C) III 
D) IV 
A) I 
B) II 
C) III 
D) IV

Question 4

What is (are)the major organic product(s)of the following reaction?

Accepted Answer

A) Only I and II 
B) Only II and III 
C) Only I and III 
D) I,II,and III 
A) Only I and II 
B) Only II and III 
C) Only I and III 
D) I,II,and III

Question 5

What is (are)the product(s)of the following reaction?

Accepted Answer

A) Only I 
B) Only II 
C) Only III 
D) I,II,and III 
A) Only I 
B) Only II 
C) Only III 
D) I,II,and III

Question 6

Which of the following compounds is a tautomer of 2-hexanone?

Accepted Answer

A) Only I and II 
B) Only I and III 
C) Only II and III 
D) I,II,and III 
A) Only I and II 
B) Only I and III 
C) Only II and III 
D) I,II,and III

Question 7

Give the IUPAC name for the following compound.

Accepted Answer

A) R-1-butyn-3-ol 
B) S-1-butyn-3-ol 
C) R-3-butyn-1-ol 
D) S-3-butyn-1-ol 
A) R-1-butyn-3-ol 
B) S-1-butyn-3-ol 
C) R-3-butyn-1-ol 
D) S-3-butyn-1-ol

Question 8

Which of the following molecular formulas is consistent with the formula for a molecule containing one alkyne and no other degrees of unsaturation?

Accepted Answer

A) I 
B) II 
C) III 
D) IV 
A) I 
B) II 
C) III 
D) IV

Question 9

Which of the following alkynes is a symmetrical alkyne?

Accepted Answer

A) I 
B) II 
C) III 
D) IV 
A) I 
B) II 
C) III 
D) IV

Question 10

Which of the following represents an internal alkyne?

Accepted Answer

A) Only I and II 
B) Only I and III 
C) Only II and IV 
D) Only II and III 
A) Only I and II 
B) Only I and III 
C) Only II and IV 
D) Only II and III

Question 11

Which of the following bases can deprotonate acetylene? You are given the pKa values of the conjugate acids in parentheses.

Accepted Answer

A) Only I and II 
B) Only I and III 
C) Only II and III 
D) Only II and IV 
A) Only I and II 
B) Only I and III 
C) Only II and III 
D) Only II and IV

Exam 11: Alkynes and Synthesis

How many s bonds and p bonds are present in a triple bond?

What is the reagent required to accomplish the following transformation?

Which of the indicated hydrogen in the following compounds is the most acidic?

What is (are)the major organic product(s)of the following reaction?

What is (are)the product(s)of the following reaction?

Which of the following compounds is a tautomer of 2-hexanone?

Give the IUPAC name for the following compound.

Which of the following molecular formulas is consistent with the formula for a molecule containing one alkyne and no other degrees of unsaturation?

Which of the following alkynes is a symmetrical alkyne?

Which of the following represents an internal alkyne?

Which of the following bases can deprotonate acetylene? You are given the pKa values of the conjugate acids in parentheses.

Structure and Bonding

Acids and Bases

Introduction to Organic Molecules and Functional Groups

Alkanes

Stereochemistry

Understanding Organic Reactions

Alkyl Halides and Nucleophilic Substitution

Alkyl Halides and Elimination Reactions

Alcohols,ethers,and Related Compounds

Alkenes and Addition Reactions

Oxidation and Reduction

Radical Reactions

Conjugation,resonance,and Dienes

Benzene and Aromatic Compounds

Reactions of Aromatic Compounds

Introduction to Carbonyl Chemistry; Organometallic Reagents; Oxidation and Reduction

Aldehydes and Ketones - Nucleophilic Addition

Carboxylic Acids and the Acidity of the O-H Bond

Carboxylic Acids and Their Derivatives Nucleophilic Acyl Substitution

Substitution Reactions of Carbonyl Compounds at the a Carbon

Carbonyl Condensation Reactions

Amines

Carbon-Carbon Bond-Forming Reactions in Organic Synthesis

Pericyclic Reactions

Carbohydrates

Amino Acids and Proteins

Synthetic Polymers

Lipids

Spectroscopy A: Mass Spectrometry

Spectroscopy B: Infrared Spectroscopy

Spectroscopy C: Nuclear Magnetic Resonance Spectroscopy

Filters

Which of the following bases can deprotonate acetylene? You are given the pK_a values of the conjugate acids in parentheses.