RAJASTHAN ­ PET Rajasthan PET Solved Paper-2004

  • question_answer
    The formula of microcosmic salt is

    A)  \[N{{a}_{2}}HP{{O}_{4}}.2{{H}_{2}}O\]

    B)  \[NaN{{H}_{4}}HP{{O}_{4}}.4{{H}_{2}}O\]

    C)  \[{{(N{{H}_{4}})}_{2}}HP{{O}_{4}}\]

    D)  \[N{{a}_{2}}N{{H}_{4}}P{{O}_{4}}.2{{H}_{2}}O\]

    Correct Answer: B

    Solution :

     Sodium ammonium hydrogen phosphate\[(Na.N{{H}_{4}}.HP{{O}_{4}}.4{{H}_{2}}O)\]is   known   as microcosmic salt.


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