The total number of structural isomers possible for hydrocarbon `C_(5)H_(10)` is

Total number of structural isomers possible from molecular formula C_(8)H_(18) that contain 7 carbons in the parent chain are:

The number of structural isomers possible for C_(4)H_(8) is

The maximum number of structural isomers possible for the hydrocarbon having the molecular formula C_(4)H_(6) , is

The total number of structural isomers of C_4H_(10)O is

The number of open chain structural isomers possible for C_(4)H_(6)

The number of open chain structural isomers possible formul C_(5)H_(8) is