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Tardigrade
Question
Chemistry
Given below are two reactions of water with sodium and carbon dioxide. What is the nature of water in these reactions? (i) 2Na + 2H2O → 2NaOH + H2 (ii) 6CO2 + 12H2O → C6H12O6 + 6H2O + 6O2
Q. Given below are two reactions of water with sodium and carbon dioxide. What is the nature of water in these reactions?
(i)
2
N
a
+
2
H
2
O
→
2
N
a
O
H
+
H
2
(ii)
6
C
O
2
+
12
H
2
O
→
C
6
H
12
O
6
+
6
H
2
O
+
6
O
2
1932
222
Hydrogen
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A
In (ii) water acts as an oxidising agent and in (i) it acts as a reducing agent
15%
B
In (i) water acts as an oxidising agent while in (ii) it acts as a reducing agent
60%
C
In both, (i) and (ii) hydrogen acts as a reducing agent
15%
D
In both, (i) and (ii) hydrogen acts as an oxidising agent
10%
Solution:
With sodium metal water acts as an oxidising agent and gets reduced to
H
2
, with
C
O
2
water acts as a reducing agent and is oxidised to oxygen.