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Question
- For each of the compounds: (î) ethane (ii) vinegar and (iii) marsh gas, draw the relevant structural formula.
- What word is used to describe these three compounds taken together?
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Solution
a. (i) Ethane:
\[\begin{array}{cc}
\phantom{........}\ce{H}\phantom{...}\ce{H}\phantom{........}\\
\phantom{....}|\phantom{....} \phantom{.}|\phantom{....}\\
\ce{H - C - C - H}\\
\phantom{....}|\phantom{....}\phantom{.}|\phantom{....}\\
\phantom{........}\ce{H}\phantom{....}\ce{H}\phantom{........}\\
\end{array}\]
(b) Vinegar:
\[\begin{array}{cc}
\phantom{............}\ce{H}\phantom{.........}\ce{O}\\
\phantom{...........}|\phantom{.......}//\\
\ce{H - C - C}\\
|\\
\phantom{...................}\ce{H}\phantom{}\phantom{....}\ce{O-H}\phantom{.......}\\
\end{array}\]
(c) Marsh gas:
\[\begin{array}{cc}
\ce{H}\\
|\\
\ce{H - C - H}\\
|\\
\ce{H}\\
\end{array}\]
b. The three compounds taken together are known as organic compounds.
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\phantom{.}\ce{H\phantom{...}H\phantom{...}O}\phantom{..}\\
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