NEET Sample Paper NEET Sample Test Paper-15

  • question_answer The pH of a solution having the\[{{\text{H}}^{\text{+}}}\]ion concentration of \[1\times {{10}^{-4}}g\]ions/litre is

    A)  5                   

    B)  4

    C)  3                   

    D)  2

    Correct Answer: B

    Solution :

    pH of solution \[=-{{\log }_{10}}{{H}^{+}}\] \[{{H}^{+}}=1\times {{10}^{-4}}g\]ions/litre \[pH=-{{\log }_{10}}{{10}^{-4}}\] \[=4\log 10=4\times 1\] So, \[pH=4.\] Hence, the correct option is [b].


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