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NEET Sample Paper NEET Sample Test Paper-1

  • question_answer
    If \[S{{O}_{2}},\] content in the atmosphere is \[0.12\text{ }ppm\] by volume, pH of rain water (assume 1.00% ionisation of acid rain as monobasic acid) is

    A)  \[5.7\]                         

    B)  \[5.6\]

    C)  \[5.4\]                         

    D)  \[2.0\]

    Correct Answer: A

    Solution :

    \[0.12\,PPm=0.12\,g\] In \[{{10}^{6}}\,mL\] \[[{{H}^{+}}]=[S{{O}_{2}}]\] \[\therefore \] \[[{{H}_{2}}S{{O}_{3}}]=\frac{0.12}{64}\times {{10}^{-3}}m\]                                 \[pH=5.7\]


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