Question 1

What is the common name for the following alkyne? 
A)neohexyne
B)trimethylpropyne
C)trimethylacetylene
D)tert-butylacetylene
E)isopropylacetylene

Accepted Answer

D

Question 2

Give the IUPAC name for the following compound. 
A)isoprene
B)3-methyl-1,3-butadiene
C)2-methyl-1,3-butadiene
D)2-methyl-2,3-butadiene
E)isobutadiene

Accepted Answer

The compound has a butadiene structure with a methyl group attached to the second carbon. The correct IUPAC name for this compound is 2-methyl-1,3-butadiene. Choice A, isoprene, has a different structure with a methyl group attached to the fourth carbon. Choice B, 3-methyl-1,3-butadiene, has a methyl group attached to the first carbon instead. Choice D, 2-methyl-2,3-butadiene, has a methyl group attached to the third carbon instead. Choice E, isobutadiene, has a different structure with a methyl branch on the second carbon instead of a straight chain.

Question 3

Draw an acceptable structure for acetylene.

Accepted Answer

H-C  C-H

Question 4

Name the following compound.

Accepted Answer

The answer of Name the following compound. ...

Question 5

Provide an acceptable name for the compound shown.

Accepted Answer

The answer of Provide an acceptable name for the compound...

Question 6

How many distinct internal alkynes exist with a molecular formula of C₆H₁₀? A)1 B)2 C)3 D)4 E)5

Accepted Answer

There are three distinct internal alkynes with the molecular formula C6H10: 2-hexyne, 3-hexyne, and 2,3-dimethyl-2-butyne. These structures differ in the position of the triple bond and branching of the carbon chain.

Question 7

Give the IUPAC name for BrCH₂CH₂CCCH₂CH₃.

Accepted Answer

The answer of Give the IUPAC name for BrCH₂CH₂CCCH₂CH₃....

Question 8

Write structures and give IUPAC names for all alkynes with molecular formula C₅H₈.

Accepted Answer

The answer of Write structures and give IUPAC names for...

Question 9

Give the IUPAC name for HCCCH₂CH₂CH₃.

Accepted Answer

The answer of Give the IUPAC name for HCCCH₂CH₂CH₃....

Question 10

What is the IUPAC name for the following alkyne? 
A)5-Bromo-2-heptyne
B)3-Bromo-5-heptyne
C)2-Bromo-2-methyl-4-hexyne
D)5-Bromo-5,5-dimethylhexyne
E)5-Bromo-5-methyl-2-hexyne

Accepted Answer

The answer of What is the IUPAC name for the...

Question 11

Give the systematic name of the compound shown below.

Accepted Answer

The answer of Give the systematic name of the compound...

Question 12

Provide the structure of all distinct terminal alkynes with a molecular formula of C₆H₁₀.

Accepted Answer

The answer of Provide the structure of all distinct terminal...

Question 13

Name the following compound. 
A)3-heptyn-6-ol
B)3-hepten-6-ol
C)4-hepten-2-ol
D)4-heptyn-2-ol
E)4-heptan-2-ol

Accepted Answer

The compound has a triple bond between carbons 4 and 5, making it a -yn ending. It also has a hydroxyl group on carbon 2, making it a -ol ending. The longest carbon chain is heptane, with the triple bond at the 4th carbon, giving the name 4-heptyn-2-ol. Choice A has the incorrect placement of the triple bond, choice B has an extra carbon on the double bond, choice C has the incorrect placement of the hydroxyl group, and choice E doesn't account for the triple bond.

Question 14

Provide the systematic name of the compound shown.

Accepted Answer

The answer of Provide the systematic name of the compound...

Question 15

Draw an acceptable structure for 3-sec-butyl-1-heptyne.

Accepted Answer

The answer of Draw an acceptable structure for 3-sec-butyl-1-heptyne....

Question 16

How many distinct terminal alkynes exist with a molecular formula of C₅H₈? A)1 B)2 C)3 D)4 E)5

Accepted Answer

The answer of How many distinct terminal alkynes exist with...

Question 17

Give the IUPAC name for (CH₃)₂C(CH₂CH₃)CCCH(CH₃)₂.

Accepted Answer

The answer of Give the IUPAC name for (CH₃)₂C(CH₂CH₃)CCCH(CH₃)₂....

Question 18

Give the systematic name for the alkyne Cl₃CCH₂CH₂CCCH₃.

Accepted Answer

The answer of Give the systematic name for the alkyne...

Question 19

Draw an acceptable structure for 2-hexyne.

Accepted Answer

The answer of Draw an acceptable structure for 2-hexyne....

Question 20

What is the IUPAC name for the following compound? 
A)cis,trans-2,4-heptadiene
B)2Z,4Z-2,4-heptadiene
C)cis,cis-2,4-heptadiene
D)trans,trans-2,4-heptadiene
E)2E,4E-2,4-heptadiene

Accepted Answer

The answer of What is the IUPAC name for the...

Quiz 7: The Reactions of Alkynes - Introduction to Multistep Synthesis

What is the common name for the following alkyne?

Give the IUPAC name for the following compound.

Draw an acceptable structure for acetylene.

Name the following compound.

Provide an acceptable name for the compound shown.

How many distinct internal alkynes exist with a molecular formula of C6H10?

Give the IUPAC name for BrCH2CH2CCCH2CH3.

Write structures and give IUPAC names for all alkynes with molecular formula C5H8.

Give the IUPAC name for HCCCH2CH2CH3.

What is the IUPAC name for the following alkyne?

Give the systematic name of the compound shown below.

Provide the structure of all distinct terminal alkynes with a molecular formula of C6H10.

Name the following compound.

Provide the systematic name of the compound shown.

Draw an acceptable structure for 3-sec-butyl-1-heptyne.

How many distinct terminal alkynes exist with a molecular formula of C5H8?

Give the IUPAC name for (CH3)2C(CH2CH3)CCCH(CH3)2.

Give the systematic name for the alkyne Cl3CCH2CH2CCCH3.

Draw an acceptable structure for 2-hexyne.

What is the IUPAC name for the following compound?

How many distinct internal alkynes exist with a molecular formula of C₆H₁₀?

Give the IUPAC name for BrCH₂CH₂CCCH₂CH₃.

Write structures and give IUPAC names for all alkynes with molecular formula C₅H₈.

Give the IUPAC name for HCCCH₂CH₂CH₃.

Provide the structure of all distinct terminal alkynes with a molecular formula of C₆H₁₀.

How many distinct terminal alkynes exist with a molecular formula of C₅H₈?

Give the IUPAC name for (CH₃)₂C(CH₂CH₃)CCCH(CH₃)₂.

Give the systematic name for the alkyne Cl₃CCH₂CH₂CCCH₃.