Q.

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.
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Which of the following pair of solutions does not form a buffer solution ?