Which general pattern represents an ether functional group?
02 Functional Groups and Nomenclature Online Quiz Questions
Use this free practice quiz with 20 questions to review 02 Functional Groups and Nomenclature, test your knowledge, and prepare for your next test or exam.
An amide functional group has a carbonyl carbon directly bonded to a nitrogen atom.
- A
True
- B
False
The common name for ethanoic acid is .
Which general pattern identifies a haloalkane?
- A
R−NH2
- B
R−C(=O)O−R′
- C
R−X
- D
R−C(=O)−R′
What term describes compounds with the same atom-to-atom connections but different spatial arrangements?
In general, different substituent prefixes in a systematic name are listed .
When numbering a parent chain, the end that gives the principal functional group the lowest appropriate number is chosen first.
- A
True
- B
False
What is the systematic name given in the material for CH3COCH2CH3?
- A
Butanal
- B
Butan-2-one
- C
Butan-1-ol
- D
Butanoic acid
Select all pairs in which the systematic name is correctly matched with its common name.
- A
Methanoic acid — formic acid
- B
Methanoic acid — acetic acid
- C
Propanone — acetone
- D
Methanal — acetaldehyde
- E
Methanal — formaldehyde
In the systematic name of CH3CH(OH)COOH, what prefix names the OH group when the carboxylic acid is the principal group?
Which option lists the general patterns given for amines?
- A
R−C(=O)NH2
- B
R−O−R′
- C
R−NH2, R2NH, or R3N
- D
R−C(=O)OH
Select all statements that correctly describe how to decide whether two structures are constitutional isomers.
- A
First compare the molecular formulas.
- B
If the formulas match and the atom connections differ, the structures are constitutional isomers.
- C
If the formulas match and the atom connections are identical, the pair is not a constitutional-isomer pair.
- D
A matching molecular formula alone is enough to establish constitutional isomerism.
- E
Structures with different molecular formulas can be constitutional isomers.
Which general pattern represents an ester?
- A
R−C(=O)−O−R′
- B
R−C(=O)H
- C
R−C(=O)−R′
- D
R−C(=O)OH
Explain why butane and 2-methylpropane are skeletal constitutional isomers. Include the molecular-formula comparison and the structural difference.
True or false: Constitutional isomers have the same molecular formula but differ in the connections between their atoms.
- A
True
- B
False
Which general pattern identifies an ester functional group?
- A
R−C(=O)−OH
- B
R−C(=O)−O−R′
- C
R−C(=O)H
- D
R−C(=O)−R′
A compound has the pattern R−C(=O)H. Which functional-group family does this pattern identify?
- A
Alcohol
- B
Ketone
- C
Aldehyde
- D
Carboxylic acid
What is the common name for ethanal?
Ethanol and methoxymethane both have the formula C2H6O. Which statement best explains their relationship?
- A
They are functional-group isomers because one is an alcohol and the other is an ether.
- B
They are positional isomers because the OH group is attached to different carbons.
- C
They are skeletal isomers because they have different carbon frameworks.
- D
They are not isomers because their functional groups differ.
If a carboxylic acid is the principal group, what prefix names an OH group elsewhere in the molecule?