What is the name of the compound shown?
(A) 1-chloro-1,2-difluoropropane
(B) 3-chloro-2,3-difluoropropane
(C) 1,2-difluoro-1-chloropropane
(D) 1-chloro-1,2-difluoropentane - HSC - SSCE Chemistry - Question 9 - 2003 - Paper 1
Question 9
What is the name of the compound shown?
(A) 1-chloro-1,2-difluoropropane
(B) 3-chloro-2,3-difluoropropane
(C) 1,2-difluoro-1-chloropropane
(D) 1-chloro-1,2-diflu... show full transcript
Worked Solution & Example Answer:What is the name of the compound shown?
(A) 1-chloro-1,2-difluoropropane
(B) 3-chloro-2,3-difluoropropane
(C) 1,2-difluoro-1-chloropropane
(D) 1-chloro-1,2-difluoropentane - HSC - SSCE Chemistry - Question 9 - 2003 - Paper 1
Step 1
Identify the compound structure
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Answer
The structure displayed is a propane backbone with two fluorine (F) atoms and one chlorine (Cl) atom substituted on the carbon atoms. The critical aspect here is to correctly position these substituents on the propane.
Step 2
Determine the correct numbering
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Answer
To name the compound properly, we start numbering from the end closest to the first substituent. For the given structure, the fluorine substitutions occur on the first and second carbon atoms.
Step 3
Identify the substituents and their positions
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Answer
The compound has:
1 F on carbon 1
1 F on carbon 2
1 Cl on carbon 1.
Thus, the compound name is formulated by identifying the substituents and their respective positions.
Step 4
Write the final IUPAC name
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Answer
Therefore, the IUPAC name of the compound is 1-chloro-1,2-difluoropropane, which corresponds to option (A).
