NEET Sample Paper NEET Sample Test Paper-92

  • question_answer
    In which of the following pairs, there is greatest difference in the oxidation number of the underlined elements?

    A) \[\underline{N}{{O}_{2}}\] and \[{{\underline{N}}_{2}}{{O}_{4}}\]

    B)        \[{{\underline{P}}_{2}}{{O}_{5}}\] and \[{{\underline{P}}_{4}}{{O}_{10}}\]

    C) \[{{\underline{N}}_{2}}O\] and \[\underline{N}O\]          

    D) \[\underline{S}{{O}_{2}}\] and \[\underline{S}{{O}_{3}}\]

    Correct Answer: D

    Solution :

    [d] O.N. of N in \[N{{O}_{2}}\]and \[{{N}_{2}}{{O}_{4}}\] is\[+4\] \[\therefore \] difference is zero. O.N. of P in \[{{P}_{2}}{{O}_{5}}\] and \[{{P}_{4}}{{O}_{10}}\] is\[+5\] \[\therefore \] difference is zero O.N. of N in \[{{N}_{2}}O\]is \[+1\] and in NO is\[+2.\] The difference is 1 O.N. of S in \[S{{O}_{2}}\] is \[+4\] and in \[S{{O}_{3}}\] is \[+6.\] The difference is \[+2.\]


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