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JEEMAIN and NEET
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JEEMAIN PAST PAPERS
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1998
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Q)
Which of the following solutions cannot act as a buffer ?
( A )
C
H
3
C
O
O
H
+
C
H
3
C
O
O
N
a
( B )
H
C
l
+
N
H
4
C
l
( C )
H
3
P
O
4
+
N
a
2
H
P
O
4
( D )
N
a
H
2
P
O
4
+
H
3
P
O
4
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