Which of the following pair of solutions does not form a buffer solution ?
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a
KOH and K2SO4
b
H2CO3 and NaHCO3
c
NH4OH and NH4Cl
d
NaH2PO4 and Na2HPO4
answer is A.
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Detailed Solution
A mixture ofa) WA and its conjugate baseb) WB and its conjugate acid(or) a salt of WA and WBact like buffers.option (1) is a SB and its salt of SA. It cannot act like bufer.