Determine the ratio of monochlorinated products obtained by chlorination of butane. Assuming that all the hydrogen atoms can be substituted at the same rate.

• A. 60% 1-chlorobutane and 40% 2-chlorobutane
• B. 70% 1-chlorobutane and 30% 2-chlorobutane
• C. 75% 1-chlorobutane and 25% 2-chlorobutane
• D. 50% 1-chlorobutane and 50% 2-chlorobutane.

Answer: (A)