Answer to Question #65842 in Physical Chemistry for umar

Question

Question 5 : In the following reaction, which is a Brønsted-Lowry base?
H
C
2
O
−
4
(
a
q
)
+
H
2
O
(
l
)
→
H
3
O
+
(
a
q
)
+
C
2
O
2
−
4
(
a
q
)
HC2O4−(aq)+H2O(l)→H3O+(aq)+C2O42−(aq)


H
3
O
+
H3O+


H
2
O
H2O

None of these

H
C
2
O
−
4
HC2O4−


Question 6 : For the following reaction, which of the following is a conjugate acid-base pair?
H
2
P
O
4
−
(
a
q
)
+
N
H
3
(
a
q
)
→
H
P
O
2
−
4
(
a
q
)
+
N
H
+
4
(
a
q
)
H2PO4−(aq)+NH3(aq)→HPO42−(aq)+NH4+(aq)

None of the above

H
2
P
O
−
4
H2PO4−
and
H
P
O
2
−
4
HPO42−


H
2
P
O
−
4
H2PO4−
and
N
H
3
NH3

HPO42- and NH4+

Answer 1

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