How many cyclic structures are possible for C | vedclass

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(B) The molecular formula $C_4H_6$ corresponds to a degree of unsaturation (double bond equivalent) of $4 - (6/2) + 1 = 2$.For cyclic structures,we co

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$5$

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(B) The molecular formula $C_4H_6$ corresponds to a degree of unsaturation (double bond equivalent) of $4 - (6/2) + 1 = 2$.For cyclic structures,we consider rings with two double bonds,one triple bond,or two rings.The possible cyclic isomers for $C_4H_6$ are:$1$. Cyclobutene (one double bond,one ring)$2$. $1-$Methylcyclopropene (one double bond,one ring)$3$. $3-$Methylcyclopropene (one double bond,one ring)$4$. Methylenecyclopropane (one double bond,one ring)$5$. Bicyclo[$1.1$.$0$]butane (two rings,no double bonds)Thus,there are $5$ possible cyclic structures.

How many cyclic structures are possible for $C_4H_6$?

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