ทดสอบการเรียกชื่อสารประกอบไฮโดรคาร์บอน
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ข้อใดเรียกชื่อสารประกอบไฮโดรคาร์บอนนี้มีชื่อแบบ IUPAC ได้ถูกต้อง
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2-methylpentane
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2-methylbutane
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3-methylbutane
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3-methylpentane
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ให้นักเรียนชั้น ม. 5/6 และ ม. 5/7 เข้าทำข้อสอบชุดนี้ภายใน� �ันที่ 2-8 ก. พ. 2553 โดยกรอกชื่อผู้เข้าใช้ดั� �นี้
ชื่อ นามสกุล เลขที่ ชั้น ตัวอย่างเช่น pakdee kuntee-3-5/6
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- 2.
ข้อใดเรียกชื่อสารประกอบไฮโดรคาร์บอนนี้มีชื่อแบบ IUPAC ได้ถูกต้อง
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2-methyl-3-methylbutane
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2-3-dimethylbutane
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2,3-dimethylbutane
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2,3-dimethylhexane
Correct Answer
A. 2,3-dimethylbutaneExplanation
The correct answer is 2,3-dimethylbutane. This is because the compound has two methyl groups attached to the second and third carbon atoms in the butane chain. The IUPAC naming system requires the numbering of the carbon atoms in the longest chain (butane in this case) and then listing the substituents (methyl groups) in alphabetical order. Since the methyl groups are attached to the second and third carbon atoms, the correct name is 2,3-dimethylbutane.Rate this question:
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- 3.
ข้อใดเรียกชื่อสารประกอบไฮโดรคาร์บอนนี้มีชื่อแบบ IUPAC ได้ถูกต้อง
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2,2,4-trimethylpentane
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2,4,4-trimethylpentane
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2,2,4-trimethyloctane
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2,4,4-trimethyloctane
Correct Answer
A. 2,2,4-trimethylpentaneExplanation
The correct answer is 2,2,4-trimethylpentane. This is because the name follows the IUPAC naming rules for hydrocarbons. The prefix "2,2,4-trimethyl" indicates that there are three methyl groups attached to the parent chain, with two of them located on the second carbon atom and one on the fourth carbon atom. The parent chain is a pentane, which means it has five carbon atoms. Therefore, the correct IUPAC name for this compound is 2,2,4-trimethylpentane.Rate this question:
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- 4.
ข้อใดเรียกชื่อสารประกอบไฮโดรคาร์บอนนี้มีชื่อแบบ IUPAC ได้ถูกต้อง
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3-ethyl-4-methylpentane
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2-methyl-3-ethylpentane
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4-methyl-3-ethylpentane
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3-ethyl-2-methylpentane
Correct Answer
A. 3-ethyl-2-methylpentaneExplanation
The correct answer is 3-ethyl-2-methylpentane. This is because the IUPAC naming system for hydrocarbons follows a specific set of rules to determine the correct order of the substituents. In this case, the longest carbon chain is pentane. The substituents, ethyl and methyl, are then numbered based on their positions on the main chain. Since ethyl is located at the 3rd carbon and methyl is located at the 2nd carbon, the correct name is 3-ethyl-2-methylpentane.Rate this question:
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- 5.
ข้อใดเรียกชื่อสารประกอบไฮโดรคาร์บอนนี้มีชื่อแบบ IUPAC ได้ถูกต้อง
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3,4,5-trimethylhexane
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2,3,4-trimethylhexane
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4-ethyl-2,3-dimethylpentane
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2-ethyl-3,4-dimethylpentane
Correct Answer
A. 2,3,4-trimethylhexaneExplanation
The correct answer is 2,3,4-trimethylhexane because it follows the IUPAC naming rules for hydrocarbons. The prefix "tri" indicates that there are three methyl groups attached to the hexane backbone. The numbers 2, 3, and 4 indicate the positions of the methyl groups on the hexane chain. Therefore, the correct IUPAC name for this compound is 2,3,4-trimethylhexane.Rate this question:
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- 6.
ข้อใดเรียกชื่อสารประกอบไฮโดรคาร์บอนนี้มีชื่อแบบ IUPAC ได้ถูกต้อง
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Cycloheptane
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Methylcycloheptane
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Methylhexane
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Methylcyclohexane
Correct Answer
A. MethylcyclohexaneExplanation
The correct answer is methylcyclohexane because the IUPAC name for this compound follows the rules for naming hydrocarbons. The prefix "methyl-" indicates the presence of a methyl group (CH3) attached to the cyclohexane ring. The main part of the name is "cyclohexane" because the compound consists of a cyclohexane ring.Rate this question:
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- 7.
ข้อใดเรียกชื่อสารประกอบไฮโดรคาร์บอนนี้มีชื่อแบบ IUPAC ได้ถูกต้อง
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3-methyl-1-butene
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2-methyl-3-butene
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3-methylbutene
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2-methylbutene
Correct Answer
A. 3-methyl-1-buteneExplanation
The correct IUPAC name for this compound is 3-methyl-1-butene because it follows the rules of IUPAC nomenclature for naming alkenes. The longest carbon chain in the molecule is four carbons, so the base name is "butene." The double bond is located at the first carbon, so it is named as "1-butene." Finally, there is a methyl group attached to the third carbon, so it is named as "3-methyl-1-butene."Rate this question:
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- 8.
ข้อใดเรียกชื่อสารประกอบไฮโดรคาร์บอนนี้มีชื่อแบบ IUPAC ได้ถูกต้อง
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2,3-dimethyl-3-butene
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2,3-dimethyl-1-butene
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2,3-dimethylbutene
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2,3-dimethyl-1-hexene
Correct Answer
A. 2,3-dimethyl-1-buteneExplanation
The correct answer is 2,3-dimethyl-1-butene because it follows the IUPAC naming rules for hydrocarbons. In this compound, there are two methyl groups (2,3-dimethyl) attached to the first carbon atom (1-butene). The numbering of the carbon atoms is done in such a way that the double bond is assigned the lowest possible number, which is 1 in this case.Rate this question:
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- 9.
ข้อใดเรียกชื่อสารประกอบไฮโดรคาร์บอนนี้มีชื่อแบบ IUPAC ได้ถูกต้อง
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2,4-dimethylpentene
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2,4-dimethyl-2-heptene
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2,4-dimethyl-2-pentene
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2,4-dimethyl-3-pentene
Correct Answer
A. 2,4-dimethyl-2-penteneExplanation
The correct answer is 2,4-dimethyl-2-pentene. This is because the compound is a pentene, which means it has five carbon atoms in its longest continuous chain. The "2,4-dimethyl" prefix indicates that there are two methyl groups attached to the second and fourth carbon atoms in the chain. The "2" in the name indicates that the double bond is located between the second and third carbon atoms in the chain. Therefore, the correct IUPAC name for this compound is 2,4-dimethyl-2-pentene.Rate this question:
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- 10.
ข้อใดเรียกชื่อสารประกอบไฮโดรคาร์บอนนี้มีชื่อแบบ IUPAC ได้ถูกต้อง
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4-ethyl-2,3-dimethyl-2-hexene
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3-ethyl-4,5-dimethyl-4-hexene
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4,5-dimethyl-3-ethyl-4-hexene
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4-ethyl-2,3-dimethyl-4-hexene
Correct Answer
A. 4-ethyl-2,3-dimethyl-2-hexeneExplanation
The correct answer is 4-ethyl-2,3-dimethyl-2-hexene. This is because the compound is a hexene, which means it has six carbons in the main chain. The presence of the ethyl group at the fourth carbon and the two methyl groups at the second and third carbons are indicated by their respective numbers. The position of the double bond is also indicated by the number 2.Rate this question:
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Jul 22, 2024Quiz Edited by
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Feb 01, 2010Quiz Created by
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