How many structural isomers can be obtained by the replacment of one hydrogen atom of propene with chlorine?

How many structural isomers can be obtained by the replacement of one hydrogen atom of propene with chlorine?

How many isomers could be obtained by replacing one hydrogen of propene with chlorine?

How many total isomers are possible by replacing one hydrogens atoms of propane with chlorine

How many structural isomers are possible for butane?

How many strutural isomers will be obtained by the displacement of two H-atoms of propane by two CI-atoms? Write their structures.

How many structural isomers can be possible for yellow complex?