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Byju's Answer
Standard XII
Chemistry
Preparation of Hydrogen
Which one of ...
Question
Which one of the following metals cannot evolve
H
2
from acids or
H
2
O
or from its compounds?
A
Hg
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B
Al
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C
Pb
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D
Fe
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Solution
The correct option is
C
Hg
H
g
has greater reduction potential than that of
H
+
and hence cannot displace hydrogen from acid.
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