a$)$ Explain the term 'structural isomers'

b$)$ Explain and describe, using at least one example of each, the following types of structural isomerism:

i$)$ Chain

ii$)$ Position

iii$)$ Functional group

c$)$ The simplest alkane to show isomerism is $C_4{H}_{10}$

There are two different compounds with the molecular formula $C_4{H}_{10}$ :

i$)$ Draw skeletal formulae and name both.

ii$)$ Draw the skeletal formulae for all of the structural isomers of $C_4{H}_{10}O$ that are alcohols.

d$)$ Draw and name the two functional group isomers with the formula $C_3{H}_{6}O$

$4.$ a$)$ Explain the term 'stereoisomers'

b$)$ Use but$-2-$ene to illustrate the difference between $E$ and $Z$ isomers.