Draw the condensed structural formulas for all the possible haloalkane isomers that have four carbon atoms and a bromine.

The isomers are shown in the image below.

Explanation:

Isomers are defined as the chemical compounds having the same number and kinds of atoms but arrangement are different.

For the alkane having four carbon atoms and 1 bromine atom, the IUPAC name of the haloalkane is bromobutane

There are 4 possible isomers for the given haloalkane compound:

The isomers of the given organic compound is shown in the image below.

the answer is 0.42 is that is an option. this question provides no info