Total number of acyclic structural isomers possible with the formula, C5H10 is

Number of structurally isomeric alkenes = 5 ;Number of structurally isomeric acyclic compounds = 5 ;Number of acyclic stereo isomers = 2… cis 2-pentene and trans 2-pentene ;Total number of acyclic isomers = 6….. 5 structural, 2 stereo ;Total number of structurally isomers = 10 ;Total number of stereoisomers = 5 ;Total number of acyclic isomers = 6….. 5 structural, 2 stereo ;Total number of cyclic isomers = 7 ;Total number of isomers =13 ;