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IUPAC nomenclature Knowledge-Based Practice

Chemistry · Organic Chemistry · Chemistry · Hydrocarbons

5 Chemistry practice questions on IUPAC nomenclature. Questions that assess core concepts and understanding.

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Questions

  1. 1.

    What is the correct IUPAC name for the hydrocarbon with the condensed structural formula CH3CH(CH3)CH2CH(CH2CH3)CH2CH3\text{CH}_3\text{CH}(\text{CH}_3)\text{CH}_2\text{CH}(\text{CH}_2\text{CH}_3)\text{CH}_2\text{CH}_3?

    • A) 3-ethyl-5-methylhexane
    • B) 2-methyl-4-ethylhexane
    • C) 4-isopropylhexane
    • D) 4-ethyl-2-methylhexane
  2. 2.

    What is the correct IUPAC name for the hydrocarbon with the condensed structural formula CH3CH=C(CH3)CH(CH3)2\text{CH}_3\text{CH}=\text{C}(\text{CH}_3)\text{CH}(\text{CH}_3)_2?

    • A) 2,3-dimethylpent-3-ene
    • B) 2,3-dimethylpent-2-ene
    • C) 3,4-dimethylpent-3-ene
    • D) 3,4-dimethylpent-2-ene
  3. 3.

    What is the correct IUPAC name for the hydrocarbon with the condensed formula CH2=CH−CH2−C≡CH\text{CH}_2=\text{CH}-\text{CH}_2-\text{C}\equiv\text{CH}?

    • A) pent-4-en-1-yne
    • B) pent-1-en-4-yne
    • C) pent-1-yn-4-ene
    • D) pent-4-yn-1-ene
  4. 4.

    What is the correct IUPAC name for the hydrocarbon with the condensed formula CH3CH2C≡CCH(CH3)2\text{CH}_3\text{CH}_2\text{C}\equiv\text{CCH}(\text{CH}_3)_2?

    • A) 5-methylhex-3-yne
    • B) 2-isopropylpent-2-yne
    • C) 5,5-dimethylpent-3-yne
    • D) 2-methylhex-3-yne
  5. 5.

    What is the correct IUPAC name for the hydrocarbon with the condensed structural formula CH3CH2C(CH3)2CH(CH3)CH2CH3\text{CH}_3\text{CH}_2\text{C}(\text{CH}_3)_2\text{CH}(\text{CH}_3)\text{CH}_2\text{CH}_3?

    • A) 3,4,4-trimethylhexane
    • B) 2-ethyl-2,3-dimethylpentane
    • C) 3,3,4-trimethylhexane
    • D) 3,4-dimethyl-3-ethylpentane

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