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JAMIA MILLIA ISLAMIA Jamia Millia Islamia Solved Paper-2009

  • question_answer
        What is the concentration of nitrate ions if equal-volumes of\[0.1M\,AgN{{O}_{3}}\]and\[0.1\text{ }M\text{ }NaCl\]are mixed together?

    A)  0.1 N                                    

    B)  0.2 M

    C)  0.05 M                                

    D)  0.25 M

    Correct Answer: C

    Solution :

                    \[AgN{{O}_{3}}(aq)+NaCl(aq)\xrightarrow[{}]{{}}NaN{{O}_{3}}(aq)\]\[+AgCl(s)\]\[NO_{3}^{-}\]ions remain in the solution for\[NaN{{O}_{3}}\]is soluble in water. If V mL each of the two solution be mixed, the volume of the resulting solution \[=2\text{ }V\] Then      \[0.1\times V={{M}_{2}}\times 2V\] \[{{M}_{2}}=\frac{0.1}{2}=0.05\]


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