What is the correct systematic name for the following compound?
A - VCE - SSCE Chemistry - Question 10 - 2010 - Paper 1
Question 10
What is the correct systematic name for the following compound?
A. 2-ethyl-3-methylpentane
B. 3-methyl-4-ethylpentane
C. 3,4-dimethylhexane
D. 2,3-diethylbutane
Worked Solution & Example Answer:What is the correct systematic name for the following compound?
A - VCE - SSCE Chemistry - Question 10 - 2010 - Paper 1
Step 1
Identify the Longest Carbon Chain
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Answer
First, identify the longest continuous chain of carbon atoms in the compound, which serves as the backbone. Here, the longest chain consists of six carbon atoms, hence it is a hexane.
Step 2
Number the Carbon Chain
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Answer
Next, number the carbon chain from the end nearest to a substituent. This will ensure the lowest numbers for the substituents. Assign numbers to the carbon atoms from 1 to 6.
Step 3
Identify and Name the Substituents
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Answer
In this structure, there are two substituents: two ethyl groups at positions 2 and 3. Since they appear before the main chain name, they should be indicated as '2,3-diethyl'.
Step 4
Combine Names for Full Systematic Name
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Answer
Finally, combine the substituents with the base name of the longest chain. The complete systematic name for the compound is '3,4-dimethylhexane'.
