What is the major product of monochlorination of 2-methylpropane and for 2-methylbutane?
My attempt: as in 3 degree position, monochlorination is favoured (due to free radical formation), so according to me, it should be 2-chloro-2-methylpropane and same as in other 2-chloro-2-methylbutane.
But, it is stated to be incorrect. The correct answer is 1-chloro-2-methylbutane. Why's that the correct answer instead?