The IUPAC Nomenclature of CH3 3 CH2 2 C(CH3 3 )=C(CH3 3 )2 2 for the compound is

Assessment: JAMB UTME - Chemistry - 2024 Subject: Chemistry

Question 1 Report

The IUPAC Nomenclature of CH3 3 CH2 2 C(CH3 3 )=C(CH3 3 )2 2  for the compound is
Answer Details

The compound in question is written as CH₃₃CH₂₂C(CH₃₃)=C(CH₃₃)₂₂, which seems to be intended as (CH3)3CH2CH=C(CH3)3. The IUPAC nomenclature of organic compounds follows specific rules to name the compound uniquely such that it is understood universally. Here is a comprehensive breakdown:


1. Select the longest carbon chain that includes the highest-order functional group, which, in this case, is the alkene group (double bond).


2. The longest chain consists of 5 carbons, which gives us the root name "pentene". We choose the carbon chain such that the double bond gets the lowest possible number, starting from the end of the chain closest to the double bond.


3. Number the carbon atoms in the chain from the end closest to the double bond. The numbering direction will determine the position of the double bond and substituents. The double bond starts on carbon 2.


4. Identify and name the substituents attached to the carbon chain. In this case, there are two methyl groups on carbon 3. This means it is dimethyl as there are two of them.


Thus, the complete name of the compound is 2,3-dimethylpent-2-ene. Here, "2,3-dimethyl" indicates the position and quantity of methyl groups, "pent" indicates the longest chain with 5 carbons, and "-2-ene" indicates a double bond starting at the second carbon.

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