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Question
Identify the statement that is incorrect about alkanes.
Options
They are hydrocarbons.
There is a single covalent bond between carbon and hydrogen.
They can undergo both substitution as well as addition reactions
On complete combustion they produce carbon dioxide and water
Solution
They can undergo both substitution as well as addition reactions.
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\[\begin{array}{cc}
\phantom{.}\ce{H\phantom{...}H\phantom{...}H}\\
\phantom{.}|\phantom{....}|\phantom{....}|\\
\ce{H - C = C - C -H}\\
\phantom{..........}|\\
\phantom{..........}\ce{H}
\end{array}\]
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