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JAMIA MILLIA ISLAMIA Jamia Millia Islamia Solved Paper-2015

  • question_answer
    The\[p{{K}_{a}}\]f a weak acid is 4.0. What should be the [salt] to [acid] ratio, if we have to prepare a buffer with\[pH=5\]?

    A) \[10:1\] 

    B)                 \[1:10\]

    C) \[4\text{ }:\text{ }5\]                    

    D) \[5\text{ }:\text{ }4\]

    Correct Answer: A

    Solution :

    According to, Henderson's equation, \[\frac{2}{T}\] \[\frac{3}{T}\] \[\frac{4}{T}\]


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