The outer orbitals of $\mathrm{C}$ in ethene molecule can be considered to be hybridized to give three equivalent $s p^2$ orbitals. The total number of sigma $(\sigma)$ and pi $(\pi)$ bonds in ethene molecule is:

• A

  3 sigma ( $\sigma)$ and 2 pi ( $\pi$ ) bonds
• B

  4 sigma $(\sigma)$ and 1 pi $(\pi)$ bonds
• Correct answer
  C

  5 sigma $(\sigma)$ and 1 pi $(\pi)$ bonds
• D

  1 sigma $(\sigma)$ and 2 pi ( $\pi$ bonds

Hence, the correct answer is option: 'C'.