Description
Which of the following aqueous solutions will or will not act as a buffer solution?
H2SO3 and NaHSO3HBr and KI
HClO4 and NaClO4CH3CO2K and CH3CO2Na
NaOH and NaClNaH2PO4 and Na2HPO4
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Explanation & Answer
A buffer is a weak acid + conjugate base or a weak base + conjugate acid
H2SO3 and NaHSO3 are sulfuric acids, which is a strong acid, so it will not act as a buffer
HBr and KI , NaOH and NaCl ,NaH2PO4 and Na2HPO4 will act as a buffer
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