For the following compounds, write structural formulas and IUPAC names for all possible isomers having the number of the double or triple bond as indicated:
(a) C4H8 (one double bond)
(b) C5H8 (one triple bond)
(a) All possible isomers of C4H8 having one double bond are as follows : -
(i) 
(ii) 
(iii) 
(b) All possible isomers of C5H8 having one triple bond are as follows : -
(i) 
(ii) 
(iii) 
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