J & K CET Engineering J and K - CET Engineering Solved Paper-2007

  • question_answer
    \[n-\]pentane, \[iso-\]pentane, and neo-pentane are examples for isomers of the type

    A)  geometrical  

    B)  optical

    C)  chain        

    D)  positional

    Correct Answer: C

    Solution :

     The compounds which differ in the nature of carbon chain are called chain isomers, eg, \[\underset{n-pen\tan e}{\mathop{C{{H}_{3}}-C{{H}_{2}}-C{{H}_{2}}-C{{H}_{2}}-C{{H}_{3}}}}\,\] \[\underset{iso-\text{pentane}}{\mathop{C{{H}_{3}}-\overset{C{{H}_{3}}}{\mathop{\overset{|}{\mathop{CH}}\,}}\,-C{{H}_{2}}C{{H}_{3}}}}\,\] \[\underset{neo-\text{pentane}}{\mathop{{{H}_{3}}C-\underset{C{{H}_{3}}}{\overset{C{{H}_{3}}}{\mathop{\underset{|}{\overset{|}{\mathop{C}}}\,-}}}\,C{{H}_{3}}}}\,\]


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