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A buffer solution is prepared by mixing ...

A buffer solution is prepared by mixing 'a' moles of `CH_(3)COONa` and 'b' moles of `CH_(3)COOH` such that `(a+b) = 1`, into water to male 1L buffer solution. If the buffer capacity of this buffer solution is plotted against moles of salt `CH_(3)COONa` 'a' then the plot obtained will be (to the scale) approximately. (As shown in fig. in options)

A

B

C

D

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The correct Answer is:
B
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