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As per your syllabus, geometrical (cis-trans) isomerism in alkenes arises because of which feature of the double bond?
AHybridisation change
BCarbocation stability
CFree rotation
DRestricted rotation
Answer & Solution
Correct answer: D. Restricted rotation
Your syllabus: π bond requires parallel p-orbital overlap
rotation would break it, so the substituents on each carbon are locked.
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