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Question
Write dash formulae for the following bond line formulae.

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Solution
\[\begin{array}{cc}
\phantom{............}\ce{H}\\
\phantom{............}|\\
\phantom{}\ce{H}\phantom{.....}\ce{H}\phantom{.....}\ce{H}\phantom{..}\ce{H-C-H}\phantom{..}\ce{H}\phantom{.}\\
\phantom{}|\phantom{......}|\phantom{......}|\text{}\phantom{......}|\text{ }\phantom{......}|\phantom{.}\\
\ce{H \phantom{.} - \phantom{.}C \phantom{.}= \phantom{.} C \phantom{.} - \phantom{.} C \phantom{.} -\phantom{.} C \phantom{.} - \phantom{.} C \phantom{.} - \phantom{.} H}\\
\phantom{..............}|\phantom{......}|\phantom{......}|\phantom{..}\\
\phantom{.........}\ce{H-C-H}\phantom{..}\ce{H}\phantom{.....}\ce{H}\\
|\phantom{.}\\
\phantom{}\ce{H}
\end{array}\]
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