Chapter 17.2, Problem 25PP

Draw the condensed structural formula for the product in each of the following:

a. ${\text{CH}}_3$ - ${\text{CH}}_2$ - ${\text{CH}}_2$ - ${\text{CH}}_{}$ = ${\text{CH}}_2$ + ${\text{H}}_2$ $\stackrel{\text{Pt}}{\to }$

b. ${\text{CH}}_3$ - ${\text{CH}}_{}$ = ${\text{CH}}_{}$ - ${\text{CH}}_3$ + ${\text{H}}_2$ $\stackrel{Ni}{\to }$