As Level Chemistry: Functional Groups Quiz
AS Level Chemistry
Questions and Answers
- 1.
What functional group is this?
- A.
Alcohol
- B.
Ketone
- C.
Ester
- D.
Aldehyde
Correct Answer
D. AldehydeExplanation
The functional group in question is an aldehyde. Aldehydes are organic compounds that contain a carbonyl group (C=O) bonded to a hydrogen atom and another carbon atom. In this case, the compound being described is likely to have this functional group present. Alcohols have a hydroxyl group (-OH), ketones have a carbonyl group bonded to two carbon atoms, and esters have a carbonyl group bonded to an oxygen atom and another carbon atom. Therefore, the best fit for the given compound is an aldehyde.Rate this question:
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- 2.
What functional group is this?
- A.
Halogenoalkane
- B.
Alkane
- C.
Alcohol
- D.
Carboxylic acid
Correct Answer
C. AlcoholExplanation
The functional group in question is an alcohol. This is because an alcohol is characterized by the presence of a hydroxyl (-OH) group attached to a carbon atom. In the given options, only the alcohol option contains the hydroxyl group, making it the correct answer.Rate this question:
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- 3.
What functional group is this?
- A.
Carboxylic acid
- B.
Alkene
- C.
Aldehyde
- D.
Amine
Correct Answer
D. AmineExplanation
The functional group in question is an amine. Amines are organic compounds that contain a nitrogen atom bonded to at least one carbon atom. They are characterized by the presence of the amino group (-NH2) or its derivatives. In this case, the other options (carboxylic acid, alkene, and aldehyde) do not fit the description of the given compound, making amine the correct answer.Rate this question:
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- 4.
What functional group is this?
- A.
Ketone
- B.
Amine
- C.
Ester
- D.
Alkane
Correct Answer
C. EsterExplanation
The functional group in question is an ester. Esters are organic compounds that are formed by the reaction between an alcohol and an organic acid, resulting in the formation of a carbonyl group (C=O) bonded to an oxygen atom (O). They are commonly used as fragrances and flavors in various products, such as perfumes and food additives. Esters have a distinct fruity smell and are characterized by their general formula RCOOR', where R and R' represent different organic groups.Rate this question:
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- 5.
What functional group is this?
- A.
Alkene
- B.
Halogenoalkene
- C.
Ketone
- D.
Carboxylic acid
Correct Answer
C. KetoneExplanation
The given functional group is a ketone. Ketones are organic compounds that contain a carbonyl group bonded to two carbon atoms. In this case, the other atoms or groups attached to the carbonyl carbon are not specified, but based on the options provided, ketone is the only functional group that fits the description.Rate this question:
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- 6.
What functional group is this?
- A.
Alkane
- B.
Alkene
- C.
Ketone
- D.
Aldehyde
Correct Answer
B. AlkeneExplanation
The given functional group is an alkene. Alkenes are hydrocarbons that contain a carbon-carbon double bond. They are characterized by the suffix "-ene" in their names. Alkanes do not have any double bonds, ketones have a carbonyl group (C=O) in the middle of the carbon chain, and aldehydes have a carbonyl group at the end of the carbon chain. Therefore, the correct functional group for this compound is an alkene.Rate this question:
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- 7.
What functional group is this?
- A.
Alkene
- B.
Alkane
- C.
Ester
- D.
Alcohol
Correct Answer
B. AlkaneExplanation
The given functional group is alkane. An alkane is a hydrocarbon compound that consists of only single bonds between carbon atoms. It is characterized by the general formula CnH2n+2, where n represents the number of carbon atoms in the molecule. Alkanes are saturated hydrocarbons and are known for their stability and lack of reactivity.Rate this question:
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- 8.
What functional group is this?
- A.
Carboxylic acid
- B.
Halogenoalkane
- C.
Alkane
- D.
Alcohol
Correct Answer
A. Carboxylic acidExplanation
The functional group in question is a carboxylic acid. This can be determined by the presence of a carboxyl group (-COOH), which consists of a carbonyl group (C=O) and a hydroxyl group (OH) attached to the same carbon atom. This functional group is characteristic of carboxylic acids and is responsible for their acidic properties.Rate this question:
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- 9.
What functional group is this?
- A.
Halogenoalkane
- B.
Alkene
- C.
Aldehyde
- D.
Ester
Correct Answer
A. HalogenoalkaneExplanation
The given functional group is a halogenoalkane. This is because a halogenoalkane is a compound that contains a halogen atom (such as chlorine, bromine, or iodine) bonded to a carbon atom. In this case, the compound in question is likely to have a halogen atom bonded to a carbon atom, indicating that it is a halogenoalkane.Rate this question:
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- 10.
What is the suffix/prefix of the halogenoalkane functional group?
- A.
Fluoro- , chloro- , bromo- , iodo-
- B.
-ane
- C.
-one
- D.
-ol
Correct Answer
A. Fluoro- , chloro- , bromo- , iodo-Explanation
The correct answer is fluoro-, chloro-, bromo-, iodo-. These prefixes are used to indicate the presence of a halogen atom (fluorine, chlorine, bromine, iodine) in a halogenoalkane functional group. The suffix -ane indicates that the compound is an alkane, which means it consists of only carbon and hydrogen atoms. Therefore, the correct answer is the prefixes fluoro-, chloro-, bromo-, iodo-.Rate this question:
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- 11.
What is the suffix/prefix of the carboxylic acid functional group?
- A.
-oic acid
- B.
-ene
- C.
-oate
- D.
-amine
Correct Answer
A. -oic acidExplanation
The suffix/prefix of the carboxylic acid functional group is "-oic acid". This is because carboxylic acids are named by replacing the "-e" at the end of the corresponding alkane name with "-oic acid". For example, methane becomes methanoic acid and ethane becomes ethanoic acid. The "-oic acid" suffix indicates the presence of a carboxyl group (-COOH) in the molecule.Rate this question:
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- 12.
What is the suffix/prefix of the alkane functional group?
- A.
-ane
- B.
-ene
- C.
-amine
- D.
-one
Correct Answer
A. -aneExplanation
The suffix of the alkane functional group is -ane. This suffix is used to indicate that a compound belongs to the alkane family, which consists of saturated hydrocarbons with single bonds between carbon atoms. The -ane suffix is added to the end of the root name of the alkane, indicating that it is a hydrocarbon with only single bonds.Rate this question:
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- 13.
What is the suffix/prefix of the ketone functional group?
- A.
-ene
- B.
Fluoro- , chloro- , bromo- , iodo-
- C.
-oic acid
- D.
-one
Correct Answer
D. -oneExplanation
The suffix/prefix of the ketone functional group is "-one". Ketones are organic compounds that contain a carbonyl group (C=O) bonded to two carbon atoms. The "-one" suffix indicates the presence of this functional group in the molecule. Other suffixes or prefixes listed in the options are associated with different functional groups or substituents.Rate this question:
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- 14.
What is the suffix/prefix of the alkene functional group?
- A.
-ane
- B.
-oate
- C.
-ene
- D.
-ol
Correct Answer
C. -eneExplanation
The correct answer is "-ene" because the suffix "-ene" is used to indicate the presence of a double bond in the alkene functional group. Alkenes are hydrocarbons that contain at least one carbon-carbon double bond, and the "-ene" suffix is added to the root name of the alkane to indicate the presence of this double bond. For example, ethene is an alkene with a double bond between two carbon atoms. Therefore, "-ene" is the appropriate suffix/prefix for the alkene functional group.Rate this question:
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- 15.
What is the suffix/prefix of the alcohol functional group?
- A.
-oic acid
- B.
-ol
- C.
-al
- D.
-oate
Correct Answer
B. -olExplanation
The correct answer is "-ol" because the suffix "-ol" is commonly used to indicate the presence of an alcohol functional group in organic compounds. The "-ol" suffix is added to the root name of the compound to indicate the presence of a hydroxyl group (-OH) attached to a carbon atom. This suffix is used for alcohols in general, regardless of the specific structure or properties of the compound.Rate this question:
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- 16.
What is the suffix/prefix of the aldehyde functional group?
- A.
-ol
- B.
-al
- C.
-ane
- D.
-yde
Correct Answer
B. -alExplanation
The correct answer is "-al" because the suffix "-al" is used to indicate the presence of an aldehyde functional group in organic chemistry. Aldehydes are characterized by a carbonyl group (C=O) bonded to at least one hydrogen atom. The "-al" suffix is added to the root name of the parent hydrocarbon to indicate the presence of the aldehyde group.Rate this question:
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- 17.
What is the suffix/prefix of the ester functional group?
- A.
-oate
- B.
-oic acid
- C.
-one
- D.
-ane
Correct Answer
A. -oateExplanation
The correct answer is "-oate" because the suffix "-oate" is used to indicate the presence of an ester functional group in organic compounds. Esters are formed by the reaction between an alcohol and an acid, and their names typically end with "-oate" to indicate the presence of the ester group. This suffix is used in the systematic naming of esters according to IUPAC nomenclature.Rate this question:
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- 18.
What is the suffix/prefix of the amine functional group?
- A.
-oate
- B.
-amine
- C.
-al
- D.
-ane
Correct Answer
B. -amineExplanation
The correct answer is "-amine" because the suffix "-amine" is used to indicate the presence of an amine functional group in organic compounds. Amines are characterized by the presence of a nitrogen atom bonded to one or more carbon atoms. The suffix "-amine" is added to the name of the parent hydrocarbon to indicate the substitution of one or more hydrogen atoms with an amino group (-NH2).Rate this question:
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Oct 10, 2023Quiz Edited by
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Feb 19, 2012Quiz Created by
Catherine Halcomb
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