• # question_answer 8) Calculate number of sigma ($\sigma$) and pi ($\pi$) bonds in the above structures (i-iv).

(i) It has $\sigma$-bonds = 33, $\pi$-bonds = 2 (ii) It has $\sigma$-bonds = 17, $\pi$-bonds = 4 (iii) It has $\sigma$-bonds = 23,$\pi$-bond = 1 (iv) It has $\sigma$-bonds = 41,$\pi$-bond = 1