Which one of the following pairs can be cis-trans to each other?
Correct answer: C. CH3 - CH=CH - CH3 and H3C-CH = CH - CH3
- A. CHCl = CCl2 and CH2 = CH2
- B. CHCI= CH2 and CH2 = CHCl
- C. CH3 - CH=CH - CH3 and H3C-CH = CH - CH3
- D. CH3 - CH3 and CH2 - CH2
Explanation
Cis-trans isomerism specifically refers to the arrangement of groups around a double bond. In order for cis-trans isomerism to occur, there must be two different groups or atoms attached to each carbon of the double bond. Both have same structural formula and different groups are attached to carbon that are double bonded so they are geometric isomers.
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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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