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प्रश्न
The number of covalent bonds in pentane (molecular formula C5H12) is:
विकल्प
5
12
17
16
उत्तर
16
The number of covalent bonds in pentane is 16.
This is clear from the structure of pentane shown below:
\[\begin{array}{cc}
\phantom{}\ce{H}\phantom{..}\ce{H}\phantom{..}\ce{H}\phantom{..}\ce{H}\phantom{..}\ce{H}\\
\phantom{...}|\phantom{...}|\phantom{...}|\phantom{...}|\phantom{...}|\phantom{...}\\
\ce{H-C-C-C-C-C-H}\\
\phantom{...}|\phantom{...}|\phantom{...}|\phantom{...}|\phantom{...}|\phantom{...}\\
\phantom{}\ce{H}\phantom{..}\ce{H}\phantom{..}\ce{H}\phantom{..}\ce{H}\phantom{..}\ce{H}
\end{array}\]
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