JEE Main · ChemistryEasy
What is the IUPAC name of the compound ?
- A.1-chlorobutane
- B.2-chlorobutane
- C.3-chlorobutane
- D.4-chlorobutane
Show correct answer & step-by-step solution
Correct answer: B — 2-chlorobutane
Solution
- Identify the longest carbon chain, which contains four carbon atoms, so the parent alkane is butane.
- Number the chain from the end that gives the substituent the lowest possible number.
- Numbering from the right gives the chlorine atom position 2.
- The compound is 2-chlorobutane.
- Hence the answer is (B).
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