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JAMB Chemistry 1982 Question 50

Question 50

Introduction to Organic Chemistry

The I.U.P.A.C name for the compound CH3—C(Cl)(CH3)—CH2—CH3 is

Diagram for this question
  1. A.2-chloro-isopentane
  2. B.3-chloro-isopentane
  3. C.2-chloro-2-methylbutane
  4. D.1-chloro-2, 2-dimethylpropane
  5. E.2-chloro-2-ethylpropane
Show the answer and explanation

Answer: C (2-chloro-2-methylbutane)

Explanation

The longest chain has four carbons (butane); carbon 2 carries both the Cl and a CH3 branch, so the name is 2-chloro-2-methylbutane.