Identify Key Functional Groups in Organic Chemistry Quiz

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| Attempts: 25 | Questions: 11 | Updated: Oct 27, 2025
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1. Which functional group is being described?

Explanation

The correct answer refers to the sulfhydryl functional group containing a sulfur atom bonded to a hydrogen atom. Carbonyl refers to a carbon atom double bonded to an oxygen atom, amino refers to a nitrogen atom bonded to two hydrogen atoms, and hydroxyl refers to an oxygen atom bonded to a hydrogen atom.

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About This Quiz
Identify Key Functional Groups In Organic Chemistry Quiz - Quiz

Enhance your understanding of functional groups in organic molecules. This quiz covers key definitions, structures, and terms, helping learners to master organic chemistry concepts efficiently and effectively.

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2. Identify this functional group.

Explanation

The correct answer is phosphate, which is a functional group made up of a phosphorus atom bonded to four oxygen atoms. Carboxyl is a functional group consisting of a carbon atom double bonded to an oxygen atom and single bonded to a hydroxyl group. Amine is a functional group consisting of a nitrogen atom bonded to hydrogen atoms. Hydroxyl is a functional group consisting of an oxygen atom bonded to a hydrogen atom.

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3. Identify the functional group represented by -OH.

Explanation

The functional group -OH is called hydroxyl, consisting of a hydrogen atom bonded to an oxygen atom, which is typically attached to a carbon atom in organic compounds. Carbonyl consists of a carbon atom double bonded to an oxygen atom, amino consists of a nitrogen atom bonded to two hydrogen atoms, and sulfhydryl consists of a sulfur atom bonded to a hydrogen atom.

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4. Identify the functional group known as amino.

Explanation

The correct functional group is 'amino' which contains a basic nitrogen atom bonded to hydrogen atoms.

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5. Identify this functional group.

Explanation

The functional group shown in the question is the carbonyl group, which consists of a carbon atom double bonded to an oxygen atom. Hydroxyl group contains an oxygen atom bonded to a hydrogen atom, amino group contains a nitrogen atom bonded to hydrogen atoms, and ether group contains an oxygen atom bonded to two carbon atoms.

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6. Identify this functional group.

Explanation

A carbonyl group consists of a carbon atom double-bonded to an oxygen atom. Amines contain a nitrogen atom bonded to hydrogen atoms. Hydroxyl groups consist of an oxygen atom bonded to a hydrogen atom. Sulfhydryl groups are characterized by a sulfur atom bonded to a hydrogen atom.

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7. Identify this functional group.

Explanation

The carboxyl group consists of a carbon atom attached to both an oxygen and a hydroxyl group. It is commonly found in organic compounds such as amino acids and fatty acids.

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8. In what type of molecule would you find the following functional group: aldehydes (example: formaldehyde)?

Explanation

Aldehydes can be identified by the presence of a carbonyl group bonded to a hydrogen atom. Alcohols contain a hydroxyl (-OH) functional group, ketones have a carbonyl group bonded to two carbon atoms, and carboxylic acids have a carboxyl group which includes both a carbonyl and a hydroxyl group.

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9. In what type of molecule would you find the following functional group?

Explanation

Ketones are organic compounds containing a carbonyl group bonded to two alkyl groups. Acetone is a commonly known example of a ketone. The incorrect answers provided are examples of other types of functional groups often found in molecules.

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10. In what type of molecule would you find the following functional group?

Explanation

The correct answer is 'alcohols' because alcohols are characterized by the presence of the hydroxyl functional group (-OH) bonded to a carbon atom in the molecule.

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11. In what type of molecule would you find the following functional group?

Explanation

Functional groups are specific groups of atoms within molecules that dictate their chemical reactivity. In the case of acids, the functional group commonly found is the carboxyl group, which consists of a carbon atom double-bonded to an oxygen atom and single-bonded to a hydroxyl group. Acids like vinegar (acetic acid) contain this carboxyl functional group.

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Which functional group is being described?
Identify this functional group.
Identify the functional group represented by -OH.
Identify the functional group known as amino.
Identify this functional group.
Identify this functional group.
Identify this functional group.
In what type of molecule would you find the following functional...
In what type of molecule would you find the following functional...
In what type of molecule would you find the following functional...
In what type of molecule would you find the following functional...
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