NEET Sample Paper NEET Sample Test Paper-69

  • question_answer
    Among the following nitrates, lead nitrate, silver nitrate and ammonium nitrate, the one that decomposes without leaving any solid residue is

    A) Lead nitrate                  

    B) Ammonium nitrate

    C) Silver nitrate                  

    D) Sodium nitrate

    Correct Answer: B

    Solution :

    \[\underset{(s)}{\mathop{{{\operatorname{NH}}_{4}}N{{O}_{3}}}}\,\,\,\xrightarrow{\Delta }\,\,2{{H}_{2}}O \uparrow \, + {{N}_{2}}O\uparrow \] \[\underset{(s)}{\mathop{\operatorname{NHN}{{O}_{3}}}}\,\,\,\xrightarrow{\Delta }\,\,\underset{(s)}{\mathop{NaN{{O}_{2}}}}\, + {{O}_{2}}\uparrow \] \[2\underset{Lunar\,\,caustic}{\mathop{AgN{{O}_{3}}(s)}}\,\,\,\to \,\,2Ag(s)\,\,+ 2N{{O}_{2}}(g)+{{O}_{2}}(g)\] \[2Pb{{(N{{O}_{3}})}_{2}}\,\,\to \,\,\underset{(s)}{\mathop{2PbO}}\,+4N{{O}_{2}}\uparrow +\,{{O}_{2}}\uparrow \]


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