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Chemistry
Chemistry
Problem
If
a
a
a
g of
NaHC
2
O
4
\text{NaHC}_2\text{O}_4
NaHC
2
O
4
is completely reduced by 100 mL of 0.02 M
KMnO
4
\text{KMnO}_4
KMnO
4
in acid medium and
b
b
b
g of
NaHC
2
O
4
\text{NaHC}_2\text{O}_4
NaHC
2
O
4
required to neutralise completely 100 mL of 0.2 M NaOH, then: a.
a
=
b
a = b
a
=
b
b.
2
a
=
b
2a = b
2
a
=
b
c.
a
=
2
b
a = 2b
a
=
2
b
d.
b
=
4
a
b = 4a
b
=
4
a
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