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JAMIA MILLIA ISLAMIA Jamia Millia Islamia Solved Paper-2008

  • question_answer
        The decomposition of a certain mass of\[CaC{{O}_{3}}\] gave\[11.2\text{ }d{{m}^{3}}\]of\[C{{O}_{2}}\]gas at STR The mass of \[KOH\]required to completely neutralise the gas is

    A)  56 g                                      

    B)  28 g

    C)  42 g                                      

    D)  20 g

    Correct Answer: B

    Solution :

                    Weight of\[11.2\text{ }d{{m}^{3}}\]of\[C{{O}_{2}}\]gas at\[STP=44/2\]          \[=22\,g\] \[\underset{56\,g}{\mathop{KOH}}\,+\underset{44\,g}{\mathop{C{{O}_{2}}}}\,\xrightarrow[{}]{{}}KHC{{O}_{3}}\] \[KOH\]required for complete neutralization requires of 22 g of\[C{{O}_{2}}\]is\[=\frac{56}{44}\times 22=28\,g\]


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