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Question
In which of the following molecule/ion all the bonds are not equal?
Options
\[\ce{XeF4}\]
\[\ce{BF^{-}4}\]
\[\ce{C2H4}\]
\[\ce{SiF4}\]
Solution
\[\ce{C2H4}\]
Explanation:
\[\ce{C2H4}\] has one double bond and four single bonds. Bond length of double bond \[\ce{(C = C)}\] is smaller than single bond \[\ce{(C - H)}\].
\[\begin{array}{cc}
\ce{H - C = C - H}\\
\phantom{}|\phantom{....}|\phantom{}\\
\phantom{}\ce{H}\phantom{...}\ce{H}\phantom{}
\end{array}\]
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