What is the correct systematic name for the compound shown above?
A - VCE - SSCE Chemistry - Question 2 - 2016 - Paper 1
Question 2
What is the correct systematic name for the compound shown above?
A. 4-methyl-5-ethylhexane
B. 2-ethyl-3-methylhexane
C. 4,5-dimethylpentane
D. 3,4-dimethylheptane
Worked Solution & Example Answer:What is the correct systematic name for the compound shown above?
A - VCE - SSCE Chemistry - Question 2 - 2016 - Paper 1
Step 1
Identify the structure of the compound
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Answer
The given compound has a main chain of seven carbon atoms, which indicates that it is a heptane. The structure has different substituents that need to be identified.
Step 2
Locate and name the substituents
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Answer
Upon examining the structure, we find two methyl groups attached to the main carbon chain. One methyl group is on carbon 3 and the other on carbon 4.
Step 3
Determine the correct IUPAC name
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Answer
Considering the longest chain, substituent positions, and the alphabetical order of the substituents, the correct systematic name is 3,4-dimethylheptane.
Step 4
Select the correct answer
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Answer
Based on the analysis, the correct answer is D. 3,4-dimethylheptane.
