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What is the IUPAC name for the compound shown here? A) methylpentyne B) 2-methyl-3-pentyne C) 4-methyl-2-pentyne D) 3-methyl-1-butyne E) 2-methyl-3-butyne

What is the IUPAC name for the compound shown here? A) methylpentyne B) 2-methyl-3-pentyne C) 4-methyl-2-pentyne D) 3-methyl-1-butyne E) 2-methyl-3-butyne

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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### Understanding IUPAC Nomenclature: Identifying 2-methyl-3-butyne **Question:** What is the IUPAC name for the compound shown here? The image contains a structural diagram of an organic compound and multiple-choice answers. The correct answer is highlighted. #### **Diagram:** - The structure depicted shows a carbon chain with a triple bond. - There is a methyl group (CH₃) attached to the second carbon atom of the main chain. - The main chain contains four carbon atoms with a triple bond starting at the third carbon atom from the left. #### **Multiple Choice Answers:** A) methylpentyne B) 2-methyl-3-pentyne C) 4-methyl-2-pentyne D) 3-methyl-1-butyne E) 2-methyl-3-butyne (Correct Answer) #### **Correct Answer:** - The correct IUPAC name for the compound is **2-methyl-3-butyne**. ### Explanation: - The main chain contains four carbon atoms, which makes it a butyne. - The triple bond is located between the third and fourth carbon atoms, starting from the left. - A methyl group (CH₃) is attached to the second carbon atom in the chain. Understanding IUPAC nomenclature is crucial in organic chemistry for identifying the structure and properties of organic compounds. Nomenclature helps in systematically naming compounds and pinpointing their structure with precision.
Transcribed Image Text:### Understanding IUPAC Nomenclature: Identifying 2-methyl-3-butyne **Question:** What is the IUPAC name for the compound shown here? The image contains a structural diagram of an organic compound and multiple-choice answers. The correct answer is highlighted. #### **Diagram:** - The structure depicted shows a carbon chain with a triple bond. - There is a methyl group (CH₃) attached to the second carbon atom of the main chain. - The main chain contains four carbon atoms with a triple bond starting at the third carbon atom from the left. #### **Multiple Choice Answers:** A) methylpentyne B) 2-methyl-3-pentyne C) 4-methyl-2-pentyne D) 3-methyl-1-butyne E) 2-methyl-3-butyne (Correct Answer) #### **Correct Answer:** - The correct IUPAC name for the compound is **2-methyl-3-butyne**. ### Explanation: - The main chain contains four carbon atoms, which makes it a butyne. - The triple bond is located between the third and fourth carbon atoms, starting from the left. - A methyl group (CH₃) is attached to the second carbon atom in the chain. Understanding IUPAC nomenclature is crucial in organic chemistry for identifying the structure and properties of organic compounds. Nomenclature helps in systematically naming compounds and pinpointing their structure with precision.
**Question:** What is the expected product from the addition reaction of 1-pentene (CH₂=CHCH₂CH₂CH₃) with bromine (Br₂)? **Options:** A) 1,2-dibromopentane B) 1-bromopentane C) 1-bromopentene D) 2-bromopentane E) 1,2-bromopentene --- **Explanation:** When 1-pentene undergoes an addition reaction with bromine (Br₂), the double bond in 1-pentene breaks and each of the two carbon atoms from the double bond bonds with one bromine atom, resulting in the formation of 1,2-dibromopentane. Thus, the correct answer is: A) 1,2-dibromopentane
Transcribed Image Text:**Question:** What is the expected product from the addition reaction of 1-pentene (CH₂=CHCH₂CH₂CH₃) with bromine (Br₂)? **Options:** A) 1,2-dibromopentane B) 1-bromopentane C) 1-bromopentene D) 2-bromopentane E) 1,2-bromopentene --- **Explanation:** When 1-pentene undergoes an addition reaction with bromine (Br₂), the double bond in 1-pentene breaks and each of the two carbon atoms from the double bond bonds with one bromine atom, resulting in the formation of 1,2-dibromopentane. Thus, the correct answer is: A) 1,2-dibromopentane
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