The outer orbitals of C in ethane molecule can be considered to be hybridized to give three equivalent sp2 orbitals. The total number of sigma $\left( \sigma \right)$ and pi $\left( \pi \right)$ bonds in ethane molecule is
3 sigma $\left( \sigma \right)$ and 2 pi $\left( \pi \right)$ bonds
4 sigma $\left( \sigma \right)$ and 1 pi $\left( \pi \right)$ bonds
5 sigma $\left( \sigma \right)$ and 1 pi $\left( \pi \right)$ bonds
1 sigma $\left( \sigma \right)$ and 2 pi $\left( \pi \right)$ bonds
