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J & K CET Medical J & K - CET Medical Solved Paper-2004

  • question_answer
    100 cc of\[0.6\text{ }N\text{ }{{H}_{2}}S{{O}_{4}}\]and 200 cc of\[0.3\text{ }N\text{ }HCl\]were mixed together. The normality of the -solution will be:

    A)  0.2 N                                    

    B)  0.4 N

    C)  0.8 N                                    

    D)  0.6 N

    Correct Answer: B

    Solution :

                                    Normality of the mixed solution \[=\frac{{{N}_{1}}{{V}_{1}}+{{N}_{2}}{{V}_{2}}}{{{V}_{1}}+{{V}_{2}}}\]                 \[=\frac{0.6\times \frac{100}{1000}+0.3\times \frac{200}{1000}}{\frac{100+200}{1000}}\]                 \[=\frac{0.6\times 0.1+0.3\times 0.2}{0.3}\]                 \[=\frac{0.06+0.06}{0.3}=\frac{0.12}{0.3}=0.4\,N\]


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