Question

How many and bond are present in each of the following-
a) CH≡C−C≡C−CH3
b) CH2=CH−C≡C−CH3​

Answer 1

sigma C−C bonds =4, sigma C−H bonds =6, pi C-C bonds =3.

Answer 2

Answer:

single bond = 1 sigma

double bond = 1 sigma and 1 pie

triple bond = 1 sigma and 2 pie

a) CH≡C−C≡C−CH3 -- triple bond(2), Single bond(6)

so, there are 8 sigma and 4 pie bonds

b) CH2=CH−C≡C−CH3​ -- single bond(8) , double bond(1), triple bond(1)

so, there are 10 sigma and 3 pie bonds