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Question
Pentane has the molecular formula C5 H12 It has
Options
5 covalent bonds
12 covalent bonds
16 covalent bonds
17 covalent bonds
Solution
16 covalent bonds
Explanation -
There are 16 covalent bonds in the structure of pentane.
\[\begin{array}{cc}
\phantom{.....}\text{H}\phantom{...} \text{H}\phantom{...}\text{H}\phantom{....} \text{H}\phantom{...} \text{H}\phantom{.....}\\
\phantom{.}|\phantom{....}|\phantom{....}|\phantom{....}|\phantom{.....}|\\
\text{H} - \text{C} - \text{C} -\text {C} - \text{C} - \text{C} - \text{H}\\
\phantom{......}|\phantom{....}|\phantom{.....}|\phantom{....}|\phantom{.....}|\phantom{......}\\
\phantom{.....}\text{H}\phantom{....} \text{H} \phantom{....} \text{H} \phantom{....} \text{H} \phantom{.....} \text{H}\phantom{.....} \\
\end{array}\]
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\[\begin{array}{cc}
\phantom{}\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\phantom{.....}\\
\phantom{}|\phantom{....}|\phantom{....}|\phantom{.....}\\
\ce{H} - \ce{C} - \ce{C} - \ce{C} ≡ \ce{C} - \ce{H}\\
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\end{array}\]
