Propene can exhibit________________?
Correct answer: D. none of the above
- A. cis-trans isomerism
- B. geometric isomerism
- C. both a & b
- D. none of the above
Explanation
Propene has the structure CH3-CH=CH2; the terminal double-bonded carbon has two identical hydrogen atoms, so cis-trans or geometric isomerism is not possible. Students may choose both a and b because cis-trans and geometric isomerism are related terms, but the molecule does not meet the required condition of two different groups on each double-bonded carbon.
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About Isomerism
Isomerism occurs when compounds have the same molecular formula but different atom arrangements or spatial orientations. The content includes chain, position, functional, metameric and tautomeric isomerism, along with geometrical and optical isomerism, including cis-trans forms, E/Z notation, chirality and enantiomers.
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