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JEE Main & Advanced JEE Main Paper (Held On 9 April 2017)

  • question_answer
    The number of P-OH bonds and the oxidation state of phosphorus atom in pyrophosphoric acid \[({{H}_{4}}{{P}_{2}}{{O}_{7}})\] respectively are: [JEE Online 09-04-2017]

    A)  five and four    

    B)  four and five

    C)  five and five                     

    D)  four and four

    Correct Answer: B

    Solution :


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