Escreva as estruturas $A$, $B$, $C$, $D$, $E$ e $F$, resultantes das reações de adição, representadas pelas equações a seguir:

$$\begin{array}{c}\mathrm{R}\\ |\\ \\ \mathrm{C}\\ |\\ \mathrm{R}\end{array}=\begin{array}{c}\mathrm{CH}{}_2\end{array}\stackrel{\mathrm{H}{}^{+}}{\to }A\stackrel{\mathrm{OH}{}^{-}}{\to }B$$

$$\begin{array}{c}\mathrm{R}\\ |\\ \\ \mathrm{C}\\ |\\ \mathrm{R}\end{array}=\begin{array}{c}\mathrm{O}\end{array}\stackrel{\mathrm{H}{}^{+}}{\to }C\stackrel{\mathrm{OH}{}^{-}}{\to }D$$

$$\begin{array}{c}\mathrm{R}\\ |\\ \\ \mathrm{C}\\ |\\ \mathrm{R}\end{array}=\begin{array}{c}\mathrm{N}\end{array}-\begin{array}{c}\mathrm{H}\end{array}\stackrel{\mathrm{H}{}^{+}}{\to }E\stackrel{\mathrm{OH}{}^{-}}{\to }F$$