What is the name of this compound?
A - HSC - SSCE Chemistry - Question 3 - 2017 - Paper 1
Question 3
What is the name of this compound?
A. 2-chloro-1-fluorobutane
B. 3-chloro-4-fluorobutane
C. 1-fluoro-2-chlorobutane
D. 4-fluoro-3-chlorobutane
Worked Solution & Example Answer:What is the name of this compound?
A - HSC - SSCE Chemistry - Question 3 - 2017 - Paper 1
Step 1
Identify the Structure of the Compound
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Answer
To name the compound, we first analyze its structure. The compound is a four-carbon alkane with two substituents: a chlorine (Cl) atom and a fluorine (F) atom.
Step 2
Number the Carbon Chain
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Answer
Next, we number the carbon chain. To give the substituents the lowest possible numbers, we start numbering from the end closest to the first substituent. In this case, we begin at the end nearest to the Cl atom.
Step 3
Determine the Substituent Locations
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Answer
Once we have the numbering, we assign numbers to each substituent. The Cl is attached to carbon 2 and the F is attached to carbon 1.
Step 4
Construct the Name of the Compound
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Answer
Following the IUPAC naming conventions, we write the name by listing the substituents in alphabetical order: '2-chloro' comes before '1-fluoro'. Therefore, the correct name for the compound is 2-chloro-1-fluorobutane, corresponding to option A.
