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Geometrical isomers differ in spatial arrangement of atoms. Which of the following is an example?
- CH3—CH=CH—CH3
- CH3—CH2—CH=CH2
- CH3—CH—CH2—CH3
- CH3—CH2—CH2—CH3
Correct answer: CH3—CH=CH—CH3
Solution
Geometrical isomerism arises in compounds with restricted rotation around a double bond and different groups attached to the doubly bonded carbons. CH3—CH=CH—CH3 exhibits this property, forming cis and trans isomers.
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