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Multiple Choice
Which of the following statements correctly describes a functional group in organic chemistry?
A
A functional group is a type of isomer that differs in the arrangement of atoms.
B
A functional group is a specific group of atoms within a molecule that is responsible for a characteristic chemical reaction of that molecule.
C
A functional group is a molecule that contains only carbon and hydrogen atoms.
D
A functional group is a large molecule made up of repeating subunits.
Verified step by step guidance
1
Understand the concept of a functional group: In organic chemistry, a functional group is a specific group of atoms within a molecule that is responsible for the characteristic chemical reactions of that molecule.
Identify the incorrect statement: A functional group is not a type of isomer. Isomers are compounds with the same molecular formula but different structural arrangements.
Clarify the incorrect statement: A functional group is not a molecule that contains only carbon and hydrogen atoms. Molecules containing only carbon and hydrogen are typically referred to as hydrocarbons.
Explain the incorrect statement: A functional group is not a large molecule made up of repeating subunits. This description is more appropriate for polymers.
Recognize the correct statement: The correct description of a functional group is that it is a specific group of atoms within a molecule responsible for a characteristic chemical reaction.