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JEE Main & Advanced Sample Paper JEE Main - Mock Test - 41

  • question_answer
    25 ml of 2 N, \[HCl\], 50 ml of 4 N, \[HN{{O}_{3}}\] and x ml of 2 M, \[{{H}_{2}}S{{O}_{4}}\] are mixed together and the total volume is made up to 1 L after dilution. 50 ml of this acid mixture completely reacted with 25 ml of a 1 N, \[N{{a}_{2}}C{{O}_{3}}\] solution. The value of x is;

    A) 250 ml          

    B)        62.5 ml

    C) 100 ml          

    D)        None of these

    Correct Answer: B

    Solution :

    [b] m. eq. of acid's in 50 ml = m. eq. of \[N{{a}_{2}}C{{O}_{3}}\] \[25\times 2+50\times 4+2\times 2\times x=\frac{1000}{50}\times 25\times 1\] \[x=62.5\text{ }ml\]


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