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Which pair of solutes could be used to p...

Which pair of solutes could be used to prepare an aqueous buffer solution with a pH `lt 7`?

A

`HCI - NH_(4)CI`

B

`HF-NaF`

C

`NH_(3)-NH_(4)CI`

D

`NaOH-NaCI`

Text Solution

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The correct Answer is:
b
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