The maximum number of cyclic isomers (positio | vedclass

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(C) The molecular formula $C_3H_2Cl_2$ corresponds to a degree of unsaturation of $2$ $(3 - 2/2 + 2/2 = 2)$.For cyclic isomers,we consider cyclopropen

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$4$

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(C) The molecular formula $C_3H_2Cl_2$ corresponds to a degree of unsaturation of $2$ $(3 - 2/2 + 2/2 = 2)$.For cyclic isomers,we consider cyclopropene derivatives:$1$. $3,3$-dichlorocyclopropene$2$. $1,3$-dichlorocyclopropene (This molecule has a chiral center at the $C_1$ position,so it exists as a pair of enantiomers).$3$. $1,2$-dichlorocyclopropeneThus,the total number of cyclic isomers is $4$ ($3,3$-dichlorocyclopropene,$1,3$-dichlorocyclopropene (enantiomer $I$),$1,3$-dichlorocyclopropene (enantiomer $II$),and $1,2$-dichlorocyclopropene).However,based on the provided options and standard interpretation of such problems,the count of distinct structural isomers is $3$,but including optical isomers,the total is $4$.

The maximum number of cyclic isomers (positional and optical) of a compound having molecular formula $C_3H_2Cl_2$ is

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