In the following molecules,
Question:

In the following molecules,

Hybridisation of carbon $\mathrm{a}, \mathrm{b}$ and c respectively are :

1. $\mathrm{sp}^{3}, \mathrm{sp}, \mathrm{sp}$

2. $\mathrm{sp}^{3}, \mathrm{sp}^{2}, \mathrm{sp}$

3. $\mathrm{sp}^{3}, \mathrm{sp}^{2}, \mathrm{sp}^{2}$

4. $\mathrm{sp}^{3}, \mathrm{sp}, \mathrm{sp}^{2}$

Correct Option: , 3

Solution: