RAJASTHAN PMT Rajasthan - PMT Solved Paper-2005

  • question_answer \[PC{{l}_{3}}\] and cold water reacts to produce which of the following?

    A) \[{{H}_{3}}P{{O}_{3}}\]                 

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

    C) \[{{H}_{4}}{{P}_{2}}{{O}_{7}}\]  

    D)        \[{{H}_{3}}P{{O}_{4}}\]

    Correct Answer: A

    Solution :

    \[PC{{l}_{3}}\] and cold water reacts to produce orthophosphorous acid (phosphorous acid)\[{{H}_{3}}P{{O}_{3}}\]. \[PC{{l}_{3}}+2H\,\,OH\xrightarrow{{}}{{H}_{3}}P{{O}_{3}}+3HCl\]

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