Which of the following conditions must be possessed by a compound to have geometrical isomerism?
Correct answer: D. Both A and B
- A. Double bond
- B. Different groups attach to same carbon of double bond
- C. Same groups attach to carbon atom of double bond
- D. Both A and B
Explanation
To exhibit geometric (cis-trans) isomerism, a molecule must have restricted rotation (usually from a double bond or ring) and each of the two atoms involved in the restricted rotation. must be bonded to two different groups.
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About Fundamental Principles of Organic Chemistry
Organic chemistry begins with carbon compounds classified by carbon skeleton, saturation and functional group. Work includes identifying groups such as hydroxyl, carbonyl, carboxyl and amino, applying basic nomenclature, and distinguishing structural, geometric and optical isomers, where the same molecular formula does not necessarily mean the same structure or properties.
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