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Question
Chemistry
The principal buffer present in human blood is
Q. The principal buffer present in human blood is
5746
199
KEAM
KEAM 2004
Equilibrium
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A
N
a
H
2
P
O
4
+
N
a
2
H
P
O
4
0%
B
H
3
P
O
4
+
N
a
H
2
P
O
4
0%
C
C
H
3
COO
H
+
C
H
3
COON
a
29%
D
N
a
2
H
P
O
4
+
N
a
3
P
O
4
43%
E
H
2
C
O
3
+
H
C
O
3
−
43%
Solution:
The principal buffer present in human blood is carbonic acid
(
H
2
C
O
3
)
and sodium hydrogen carbonate
(
N
a
H
C
O
3
)
.
This hepls in maintaining pH of the blood close to 7.4.