there is
cyclobut-1-ene
but-2-yne
but-1-yne
3-methylcycloprop-1-ene
but-1,2-diene
but-1,3-diene
2-methylcycloprop-1-ene
and two more nameless ones, which have the line diagrams:
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and
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The isomers of C4H6 are 1-butene, cis-2-butene, trans-2-butene, and 1,3-butadiene.
3-Methyl-1-Butene 2-Methyl-2-Butene 2-Methyl-1-Butene 1,2-Dimethylcyclopropane (this can come in both cis and trans configurations) Ethylcyclopropane Cyclopentane 1-Methylcyclobutane 1-Pentene 2-Pentene (this can come in both cis and trans configurations) 1,1-Dimethylcyclopropane
Butyne is a hydrocarbon compound with the chemical formula C4H6. It exists in two isomeric forms: 1-butyne and 2-butyne. Both isomers have a linear structure with a triple bond between two carbon atoms at different positions in the carbon chain.
C3H4O can have two isomers: propynal and cyclopropanone.
There are three cyclic isomers possible for the formula C3H6O: two variations of oxirane and one of cyclopropanol. There are two acyclic isomers: propanal and 2-propanol.
The isomers of C4H6 are 1-butene, cis-2-butene, trans-2-butene, and 1,3-butadiene.
3-Methyl-1-Butene 2-Methyl-2-Butene 2-Methyl-1-Butene 1,2-Dimethylcyclopropane (this can come in both cis and trans configurations) Ethylcyclopropane Cyclopentane 1-Methylcyclobutane 1-Pentene 2-Pentene (this can come in both cis and trans configurations) 1,1-Dimethylcyclopropane
Butyne is a hydrocarbon compound with the chemical formula C4H6. It exists in two isomeric forms: 1-butyne and 2-butyne. Both isomers have a linear structure with a triple bond between two carbon atoms at different positions in the carbon chain.
There are two isomers for dibromopropane: 1,2-dibromopropane and 2,2-dibromopropane.
C3H4O can have two isomers: propynal and cyclopropanone.
Two sugar isomers have the same chemical formula but different structural arrangements.
If they're isomers, they by definition have the same molecular formula.
Butune is a nonsubstituted alkane that can exist as one of only two isomers.
There are three cyclic isomers possible for the formula C3H6O: two variations of oxirane and one of cyclopropanol. There are two acyclic isomers: propanal and 2-propanol.
C3H12 can have two different isomers: n-propane, which is a straight chain molecule, and isobutane, which is a branched molecule.
There are two types of geometric isomers possible in octahedral complex ions: cis and trans isomers. For a complex with six different ligands, there can be a maximum of 30 different cis and trans isomers.
Two: 1,1-dichloroethane and 1,2-dichloroethane.