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NEET Sample Paper NEET Sample Test Paper-54

  • question_answer
    Calcium imide on hydrolysis give gas (P) which on oxidation by bleaching powder give gas (Q). Gas (Q) on reaction with magnesium gives compound(R) which on hydrolysis again give gas (P). Identify (P), (Q), (R).

    A) \[{{N}_{2}},\text{ }N{{H}_{3}},\,\,MgNH\]

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

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

    D) \[{{N}_{2}},\text{ }{{N}_{2}}{{O}_{5}},\text{ }Mg{{\left( N{{O}_{3}} \right)}_{2}}\]

    Correct Answer: B

    Solution :

    \[CaNH\text{ }\xrightarrow[Hydrolysis]{H-OH}\,\,Ca{{(OH)}_{2}}\,\,+\,\,N{{H}_{3}}\] \[N{{H}_{3}}+CaOC{{l}_{2}}\,\,\to \,\,{{N}_{2}}+{{H}_{2}}O\,\,+\,\,CaC{{l}_{2}}\] \[Mg\,\,+\,\,{{N}_{2}}\text{ }\xrightarrow{Hydrolysis}M{{g}_{3}}{{N}_{2}}\] \[M{{g}_{3}}{{N}_{2}}~\xrightarrow{Hydrolysis}\,\,Mg{{\left( OH \right)}_{2}}+\underset{(P)}{\mathop{N{{H}_{3}}}}\,\]


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