JEE Main & Advanced Chemistry The p-block Elements-II / p-ब्लॉक तत्व-II Question Bank Self Evaluation Test - The p-Block Elements (Group 15, 16, 17 & 18)

  • question_answer
    A metal X on heating in nitrogen gas gives Y. Y on treatment with \[{{H}_{2}}O\] gives a colourless gas which when passed through \[CuS{{O}_{4}}\] solution gives a blue colour. Y is

    A) \[Mg{{(N{{O}_{3}})}_{2}}\]                

    B) \[M{{g}_{3}}{{N}_{2}}\]

    C) \[N{{H}_{3}}\]                        

    D) \[MgO\]

    Correct Answer: B

    Solution :

    [b] \[3Mg+{{N}_{2}}\xrightarrow{\Delta }M{{g}_{3}}{{N}_{2}}\xrightarrow{6{{H}_{2}}O}\] \[3Mg{{\left( OH \right)}_{2}}+2N{{H}_{3}};\] \[CuS{{O}_{4}}+4N{{H}_{3}}\to \underset{deep\text{ }blue\text{ }colour}{\mathop{\left[ Cu{{\left( N{{H}_{3}} \right)}_{4}} \right]S{{O}_{4}}}}\,\]


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