RAJASTHAN ­ PET Rajasthan PET Solved Paper-2006

  • question_answer
    The correct order of\[O-O\]bond length in \[{{O}_{2}},{{H}_{2}}{{O}_{2}}\]and\[{{O}_{3}}\].

    A)  \[{{H}_{2}}{{O}_{2}}>{{O}_{3}}>{{O}_{2}}\]

    B)  \[{{O}_{2}}>{{O}_{3}}>{{H}_{2}}{{O}_{2}}\]

    C)  \[{{O}_{2}}>{{H}_{2}}{{O}_{2}}>{{O}_{3}}\]

    D)  \[{{O}_{3}}>{{H}_{2}}{{O}_{2}}>{{O}_{2}}\]

    Correct Answer: A

    Solution :

     The\[O-O\]bond length in\[{{H}_{2}}{{O}_{2}},{{O}_{3}},{{O}_{2}}\]is as: \[{{H}_{2}}{{O}_{2}}=1.48\overset{o}{\mathop{\text{A}}}\,\] \[{{O}_{3}}=1.26\overset{o}{\mathop{\text{A}}}\,\] \[{{O}_{2}}=1.21\overset{o}{\mathop{\text{A}}}\,\] Hence, the decreasing order of\[O-O\]bond length is as: \[{{H}_{2}}{{O}_{2}}>{{O}_{3}}>{{O}_{2}}\]


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