Question

Give all the possible monohalogenated products of 3-methylpropane +BR2 and indicate major product

Answer 1

There is a typo in the question because there is no compound called 3-methylpropane. Assuming that it was supposed to be 2-methylpropane, there are 2 possible monohalogenated products of this reaction:

1-bromo-2-methylpropane (CH₃)₂CHCH₂Br (1)

2-bromo-2-methylpropane (CH₃)₃CBr (2)

The product (2) will be major due to the significantly higher reactivity of 3^o hydrogen atom compared to 1^o hydrogen.