There are (in total) 8 structural isomers of C5H11Br, from the 3 different 'pentanyl' hydrocarbon (-C5H11) isomers (n-pentane, iso-pentane and neo-pentane):
3
cis-1,2-dibromoethene
trans-1,2-dibromoethene
1,1-dibromoethene
With the help of "Chemspider" I identified six isomers.
9 isomers exist for C5H9Br
2
Twenty (20)
9
2
5
nonane(c9h20) has 35 isomers.
it has 4 isomers
There is only 1 form of propanal.
3
3
Three
3 different isomers exist.
There are only two polar isomers for c2h2cl2 molecule.
Write four isomers that share the formula of C5H10.
Two: 1,1-dichloroethane and 1,2-dichloroethane.
Three
16!