Question

In the given molecule total how many $\sigma$ and $\pi$ bonds are there?

• A. $\sigma$=8, $\pi$= 3
  
• B. $\sigma$=21, $\pi$= 1
  
• C. $\sigma$=10, $\pi$= 4
  
• D. $\sigma$=13, $\pi$= 1
  

Answer 1

The correct option is A $\sigma$=8, $\pi$= 3

$C-H(\sigma -bonds)=4$

$C-C(\sigma -bonds)=3$

$C-O(\sigma -bond)=1$

Total $\sigma -bonds=8$

$\pi -bonds=2-(C-C)\pi -bonds$

$\pi -bonds=1-(C-O)\pi -bonds$

Total $\pi -bonds=3$

Hence the correct option is A.