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CET Karnataka Medical CET - Karnataka Medical Solved Paper-2002

  • question_answer
    \[20ml\]of \[0.25\text{ }N\]strong acid and \[30ml\text{ }0.2\text{ }N\]of strong base are mixed; the resulting solution is:

    A)   \[0.02N\]acidic  

    B)  \[0.025\]N basic

    C)  \[0.02\text{ }N\]basic   

    D)  \[0.025\text{ }N\]acidic

    Correct Answer: C

    Solution :

    \[{{V}_{1}}=20ml,{{N}_{1}}=0.25N,\,{{V}_{2}}=30ml\], \[{{N}_{2}}=0.2N\] \[\because \]\[N=\frac{{{N}_{1}}{{V}_{1}}+{{N}_{2}}{{V}_{2}}}{{{V}_{1}}+{{V}_{2}}}=\frac{20(0.25)+30(0.2)}{20+30}\] \[=\frac{5+6}{50}=\frac{11}{50}=0.2N\],basic


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