Question

why are detergents made of molecules in which branching is minimum, preferred?? ​

Answer 1

detergents made of molecules in which branching is minimum, are preferred because the more a molecule is branched the more time it takes to get degraded by micro organisms and hence causes pollution whereas when the branching is minimum micro organisms can easily degrade that particular molecule

Answer 2

1.molecules in which the branching is minimum are digreded more easily by the organisms present in severage discharge septic tank thus they do not result in the pollution of water bodies ...
2.For the growth of carbon chain

(reference):- all in one science
hope it helps...