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Tardigrade
Question
Chemistry
Which of the following pairs of substances gives same gaseous product on reaction with water?
Q. Which of the following pairs of substances gives same gaseous product on reaction with water?
1603
286
Hydrogen
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A
Na and
N
a
2
O
2
30%
B
Ca and
C
a
H
2
41%
C
Ca and CaO
22%
D
Ba and
B
a
O
2
7%
Solution:
C
a
+
2
H
2
O
→
C
a
(
O
H
)
2
+
H
2
C
a
H
2
+
2
H
2
O
→
C
a
(
O
H
)
2
+
2
H
2