How many sigma-and -pi-bonds are present in each of the following molecules ? (a) HC -= C CH = CHCH_(3) (b) CH_(2)=C=CHCH_(3)

How many sigma-and -pi-bonds are present in each of the following mole

1.	How many sigma-and -pi-bonds are present in each of the following molecules ? (a) HC -= C CH = CHCH_(3) (b) CH_(2)=C=CHCH_(3)
Answer» SOLUTION :WRITE the COMPLETE STRUCTURAL formulae and count the number of carbon-carbon, carbon-hydrogen sigma-bonds and carbon-carbon pi-bonds :