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Metal which does not react with cold water but evolves H2 with steam is

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By Expert Faculty of Sri Chaitanya
a
Fe
b
K
c
Pt
d
Na
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detailed solution

Correct option is A

3FeRed  hot  +  4H2Ov  →  Fe3O4 +  4H2


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Which of the following gas is/are obtained by electrolysis of acidified water using platinum electrodes?

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