Question

The structures of six organic compounds are shown:

A \[\begin{array}{cc} \ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\\ |\phantom{....}|\phantom{....}|\phantom{....}|\\ \ce{H - C - C = C - C - H}\\ |\phantom{.............}|\\ \ce{H}\phantom{............}\ce{H} \end{array}\]	B \[\begin{array}{cc} \phantom{.......}\ce{H}\phantom{.....}\ce{O}\\ \phantom{.......}|\phantom{.....}//\\ \ce{H - C - C}\\ \phantom{......}|\phantom{.....}\backslash\\ \phantom{...........}\ce{H}\phantom{.....}\ce{O - H} \end{array}\]	C \[\begin{array}{cc} \ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\\ |\phantom{....}|\phantom{....}|\phantom{....}|\\ \ce{H - C - C - C - C - H}\\ |\phantom{....}|\phantom{....}|\phantom{....}|\\ \ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H} \end{array}\]
D \[\begin{array}{cc} \ce{H}\phantom{...}\ce{H}\\ |\phantom{....}|\\ \ce{H - C - C - H}\\ |\phantom{....}|\\ \ce{H}\phantom{...}\ce{O}\\ \phantom{.......}\backslash\\ \phantom{.........}\ce{H} \end{array}\]	E \[\begin{array}{cc} \ce{H}\\ |\\ \ce{H - C - H}\\ \ce{H}\phantom{....}\phantom{....}\ce{H}\\ |\phantom{....}|\phantom{....}|\\ \ce{H - C - C - C - H}\\ |\phantom{....}|\phantom{....}|\\ \ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H} \end{array}\]	F \[\begin{array}{cc} \ce{H}\phantom{...}\ce{H}\\ |\phantom{....}|\\ \ce{C = C}\\ |\phantom{....}|\\ \ce{H}\phantom{...}\ce{H} \end{array}\]

1. Identify two of the compounds that are members of the same homologous series but are not isomers.
2. Which two compounds are isomers of each other?
3. F can be prepared from D. Give a chemical equation for the reaction.

Answer 1

1. A and F are two of the compounds that are members of the same homologous series but are not isomers.
2. C and E are two compounds that are isomers of each other.
3. \[\ce{C2H5OH ->[170^\circ C][conc{.} H2SO4] C2H4 + H2O}\]