What is the IUPAC name of the following compound?
H F Br
H—C—C—H
H Br H - HSC - SSCE Chemistry - Question 2 - 2060 - Paper 1
Question 2
What is the IUPAC name of the following compound?
H F Br
H—C—C—H
H Br H
Worked Solution & Example Answer:What is the IUPAC name of the following compound?
H F Br
H—C—C—H
H Br H - HSC - SSCE Chemistry - Question 2 - 2060 - Paper 1
Step 1
Identify the longest carbon chain
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Answer
The compound has a longest chain of three carbon atoms, indicating it is a propane.
Step 2
Identify and name the substituents
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Answer
There are two bromine (Br) atoms and one fluorine (F) atom as substituents.
Step 3
Number the carbon atoms
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Answer
Number the carbon atoms so that the substituents have the lowest possible numbers. In this case, the numbering from left to right gives the best result:
1 - F, 2 - Br, 3 - Br.
Step 4
Combine substituents and base name
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Answer
The IUPAC name is constructed as follows: Start with the substituents in alphabetical order followed by the base name. Therefore, it is named as 1,2-dibromo-2-fluoropropane.
Step 5
Final IUPAC name
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Answer
The correct IUPAC name for the compound is 1,2-dibromo-2-fluoropropane.
