JEE Main & Advanced Chemistry Analytical Chemistry Question Bank Wet Test for Basic Radical

  • question_answer
    In the group III radicals, in place of \[N{{H}_{4}}Cl\] which of the following can be used [AIIMS 1980, 82; MP PMT 1985]

    A) \[N{{H}_{4}}N{{O}_{3}}\]

    B) \[{{(N{{H}_{4}})}_{2}}S{{O}_{4}}\]

    C) \[{{\left( N{{H}_{4}} \right)}_{2}}C{{O}_{3}}\]

    D) \[NaCl\]

    Correct Answer: A

    Solution :

    \[NH_{4}^{+}\] ions are required to supress the ionization of NH4OH but sufficient to precipitate the III group radicals.  (NH4)2SO4 can?t be used as \[SO_{4}^{2-}\] ions will precipitate Ba2+ as BaSO4


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