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Multiple Choice
Which of the following statements about the functional groups present in is incorrect?
A
contains a catechol group.
B
contains a hydroxyl group.
C
contains an amine group.
D
contains a group.
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1
Identify the structure of norepinephrine to understand its functional groups. Norepinephrine is a neurotransmitter with a specific chemical structure.
Examine the structure for the presence of a catechol group. A catechol group consists of a benzene ring with two hydroxyl groups attached to adjacent carbon atoms.
Look for hydroxyl groups in the structure. Hydroxyl groups are characterized by an -OH group attached to a carbon atom.
Check for the presence of an amine group. An amine group contains a nitrogen atom bonded to one or more alkyl or aryl groups.
Determine if there is a carboxyl group in norepinephrine. A carboxyl group is characterized by a carbon atom double-bonded to an oxygen atom and single-bonded to a hydroxyl group (-COOH).