• # question_answer Which of the following pairs is an example of position isomerism A) $C{{H}_{3}}-C{{H}_{2}}-C{{H}_{2}}-C{{H}_{3}}$ and $C{{H}_{3}}-\underset{C{{H}_{3}}\,\,}{\mathop{\underset{|\,\,\,\,\,\,\,\,}{\mathop{CH-}}\,}}\,C{{H}_{3}}$ B) $C{{H}_{3}}-C{{H}_{2}}-CH=C{{H}_{2}}$ and $C{{H}_{3}}-CH=CH-C{{H}_{3}}$ C) $C{{H}_{3}}-C{{H}_{2}}OH$ and $C{{H}_{3}}-O-C{{H}_{3}}$ D)  $C{{H}_{3}}-\underset{C{{H}_{3}}\,\,\,\,\,\,\,\,}{\mathop{\underset{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}{\mathop{\overset{C{{H}_{3}}\,\,\,\,\,\,\,\,}{\mathop{\overset{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}{\mathop{C-C{{H}_{3}}\,}}\,}}\,}}\,}}\,$and$C{{H}_{3}}-C{{H}_{2}}-C{{H}_{2}}-C{{H}_{2}}-C{{H}_{3}}$

Solution :

$\underset{1-\text{butane}}{\mathop{C{{H}_{3}}-C{{H}_{2}}-CH=C{{H}_{2}}}}\,$&$\underset{2-\text{butane}}{\mathop{C{{H}_{3}}-CH=CH-C{{H}_{3}}}}\,$

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