Which of the statements about the properties of the carbon-carbon double bond is not true? Group of answer choices Whenever the two groups on each end of a carbon-carbon double bond are the same, two diastereomers are possible. Trans alkenes are generally more stable than cis alkenes. The stability of the carbon-carbon double bond increases as the number of substituent groups increases. There is restricted rotation around the carbon-carbon double bond.

Question

Chemistry

Smiley

8 December, 22:18

Which of the statements about the properties of the carbon-carbon double bond is not true? Group of answer choices Whenever the two groups on each end of a carbon-carbon double bond are the same, two diastereomers are possible. Trans alkenes are generally more stable than cis alkenes. The stability of the carbon-carbon double bond increases as the number of substituent groups increases. There is restricted rotation around the carbon-carbon double bond.

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Answers (1)

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Quinn Saunders · Answer 1

Whenever the two groups on each end of a carbon-carbon double bond are the same, two diastereomers are possible.

Explanation:

Double bonds are formed when four electrons are shared between two carbon atoms. The second bond is generally known as a pi-bond while the first bond is called a sigma bond.

The presence of a double bond in a compound leads to restricted rotation about the carbon-carbon double bond. Hence the substituents are 'locked' in a particular configuration.

The more substituted a double bond is, the more stable it is according to Saytzeff's Rule.

Due to steric effects, trans alkenes are generally more thermodynamically stable than cis alkenes since trans alkenes have bulky groups oriented apart from each other.

All these are true statements. The answer selected must be the untrue statement.