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Chemistry
Chemistry
Problem
Identify the substance acting as oxidant or reductant reduced if any in the following : (i)
A
l
C
l
3
+
3
K
⟶
A
l
+
3
K
C
l
\mathbf{AlCl_3 + 3K \longrightarrow Al + 3KCl}
AlC
l
3
+
3K
⟶
Al
+
3KCl
(ii)
S
O
2
+
2
H
2
S
⟶
3
S
+
H
2
O
\mathbf{SO_2 + 2H_2S \longrightarrow 3S + H_2O}
S
O
2
+
2
H
2
S
⟶
3S
+
H
2
O
(iii)
B
a
C
l
2
+
N
a
2
S
O
4
⟶
B
a
S
O
4
+
2
N
a
C
l
\mathbf{BaCl_2 + Na_2SO_4 \longrightarrow BaSO_4 + 2NaCl}
BaC
l
2
+
N
a
2
S
O
4
⟶
BaS
O
4
+
2NaCl
(iv)
3
I
2
+
6
N
a
O
H
⟶
N
a
I
O
3
+
5
N
a
I
+
3
H
2
O
\mathbf{3I_2 + 6NaOH \longrightarrow NaIO_3 + 5NaI + 3H_2O}
3
I
2
+
6NaOH
⟶
NaI
O
3
+
5NaI
+
3
H
2
O
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