If the reaction takes place in presence of sunlight ,
CH3CH2CH3 + Cl2 gives CH3CH2CH2Cl &CH3CHClCH3
In this second compound is major product with 2° C atom attached chlorine BUT ,
In this reaction ,
CH3CH(CH3)CH3 + Cl2 gives CH3CH(CH3)CH2Cl & CH3C(CH3)(Cl)CH3
In this first compound is major product .
Why ? I cannot understand why major product changes even though reaction mechanism is same.
