Define number of sigma bonds in 4-methyl-pentene-2. Select one: o
A_13
B_14
C_15
D_ 17​

There are 15 sigma bonds in the molecule

There are two kinds of bonds in organic chemistry, sigma bonds and pi bonds. Sigma bonds are formed by end to end or head to head overlap of atomic orbitals.

Pi bonds are formed by side by side overlap of atomic orbitals.

In the compound 4-methyl-pent-2-ene, there are 15 sigma bonds and only one pi bond.

Hence, in the compound  4-methyl-pent-2-ene, there are 15 sigma bonds.

For another definition of sigma and pi bonds see:

the maximum mass of nh3 is nh3 in grams