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NEET Sample Paper NEET Sample Test Paper-4

  • question_answer
    Nitric acid is made by dissolving the gas \[N{{O}_{2}}\] in water. What is the density of \[N{{O}_{2}}\] gas in \[g{{L}^{-1}}\] at \[1.24\]atm and\[{{50}^{o}}C\]?

    A)  \[2.151\]                     

    B)  \[~21.51\]

    C)  \[3.15\]                       

    D)  \[0.0315\]

    Correct Answer: A

    Solution :

    \[P=\frac{n}{\upsilon }RT=\frac{w}{m\upsilon }RT\] \[P=\frac{dRT}{m}\]            \[\left( \because \,\frac{w}{\upsilon }=d \right)\] \[d=\frac{1.24\times 46}{0.0821\times 323}=2.15\,g{{L}^{-1}}\]


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