Total number of C-C sigma bond in phenylethene

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The book may have made an error in stating the answer as 12. The number of sigma bonds in a single bond is 1 and the number in a double bond is 1 sigma bond and 1 pi bond. Therefore, the total number of C-C sigma bonds in phenylethene is 8.
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desmond iking
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Homework Statement



how many is total number of C-C sigma bond in phenylethene?


Homework Equations





The Attempt at a Solution



i have drawn the the strucutre as in the photo. i ended up getting 8 C-C sigma bond. but the ans from my book is 12. How to get 12?
 

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  • #2
How many sigma (σ) bonds are in a single bond?

How sigma (σ) bonds are in a double bond?
 
  • #3
ChiralWaltz said:
How many sigma (σ) bonds are in a single bond?

How sigma (σ) bonds are in a double bond?

Even after answering those questions, I don't think the OP's answer would change. I would say that the OP is correct and the book has an error.
 
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  • #4
ChiralWaltz said:
How many sigma (σ) bonds are in a single bond?

How sigma (σ) bonds are in a double bond?

1 σ in single bond, 1 σ and 1 pi bond in double bond.
 
  • #5
I would agree that OP is correct and that the number of C-C sigma bonds is 8.
 

FAQ: Total number of C-C sigma bond in phenylethene

How many C-C sigma bonds are present in phenylethene?

The total number of C-C sigma bonds in phenylethene is 6. This is because phenylethene, also known as styrene, has 6 carbon atoms and each carbon atom forms a single bond with the adjacent carbon atom, resulting in 6 C-C sigma bonds.

What is the structure of phenylethene?

Phenylethene has a linear structure, with a double bond between the first and second carbon atoms and a single bond between the second and third carbon atoms. The remaining carbon atoms are connected by single bonds, resulting in a total of 6 C-C sigma bonds.

How do the C-C sigma bonds contribute to the stability of phenylethene?

The C-C sigma bonds in phenylethene contribute to its stability by providing strong covalent bonds between the carbon atoms. The presence of a double bond also results in a rigid planar structure, making the molecule more stable.

Can the number of C-C sigma bonds in phenylethene be changed?

No, the number of C-C sigma bonds in phenylethene is fixed at 6 due to its molecular structure. The only way to change the number of C-C sigma bonds would be to alter the structure of the molecule itself.

How does the number of C-C sigma bonds in phenylethene affect its physical and chemical properties?

The number of C-C sigma bonds in phenylethene affects its physical and chemical properties by influencing its reactivity and stability. The presence of 6 strong C-C bonds makes phenylethene less reactive and more stable compared to molecules with fewer C-C bonds.

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