IUPAC nomenclature Knowledge-Based Download PDF

Questions

1. 1.

   What is the systematic IUPAC name for the hydrocarbon with the condensed structural formula $\text{CH}_2=\text{C}(\text{CH}_3)\text{CH}(\text{CH}_2\text{CH}_3)\text{CH}=\text{CH}_2$?

   • A) 2-methyl-3-ethylpenta-1,4-diene
   • B) 3-ethyl-2-methylpenta-1,4-diene
   • C) 3-ethyl-4-methylpenta-1,4-diene
   • D) 2-ethyl-3-methylpenta-1,4-diene
2. 2.

   What is the systematic IUPAC name for the hydrocarbon with the condensed structural formula $\text{CH}_2=\text{CHCH}(\text{CH}_3)\text{C}\equiv\text{CH}$?

   • A) 3-methylpent-4-en-1-yne
   • B) 3-methylpent-1-en-4-yne
   • C) 3-methylpent-1-yn-4-ene
   • D) 3-methylpent-4-yn-1-ene
3. 3.

   What is the systematic IUPAC name for the alkane with the condensed structural formula $\text{CH}_3\text{CH}(\text{CH}_3)\text{CH}(\text{CH}_2\text{CH}_3)\text{CH}(\text{CH}_3)_2$?

   • A) 3-ethyl-2,4-dimethylpentane
   • B) 3-isopropyl-2-methylpentane
   • C) 2,4-dimethyl-3-ethylpentane
   • D) 2-isopropyl-3-methylpentane
4. 4.

   What is the systematic IUPAC name for the hydrocarbon with the condensed structural formula $\text{CH}_3\text{CH}=\text{C}(\text{CH}_2\text{CH}_3)\text{CH}(\text{CH}_3)\text{CH}_2\text{CH}_3$?

   • A) 4-ethyl-3-methylhex-4-ene
   • B) 3-ethyl-4-methylhex-2-ene
   • C) 4-methyl-3-ethylhex-2-ene
   • D) 3-ethyl-4,5-dimethylpent-2-ene
5. 5.

   What is the systematic IUPAC name for the hydrocarbon with the condensed formula $\text{CH}_3\text{CH}(\text{CH}_3)\text{C}\equiv\text{CCH}_2\text{CH}_3$?

   • A) 5-methylhex-3-yne
   • B) 2-methylhex-3-yne
   • C) 2-isopropylbut-2-yne
   • D) 5-methylhex-4-yne