Choose the Best Answer · Q15
Q.Cis-2-butene and trans-2-butene are
(a) conformational isomers
(b) structural isomers
(c) configurational isomers
(d) optical isomers
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Start your 14-day free trial to unlock the full solution →Step 1. Cis-2-butene and trans-2-butene share the same molecular formula (C4H8) and the same atomic connectivity (both are CH3-CH=CH-CH3) -- so they are NOT structural (constitutional) isomers, ruling out (b).
Step 2. They differ only in the spatial arrangement of the two methyl groups relative to the C=C double bond (same side = cis, opposite sides = trans) -- a form of stereoisomerism. …
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