Questions
Which one of the following pairs of substances on reaction will not evolve gas ?
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a
Iron and H2SO4(aq)
b
Iron and steam
c
Copper and HCl(g)
d
Sodium and ethyl alcohol
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Correct option is C
Fe+H2SO4⇌FeSO4+H23Fe+4H2O( steam )⇌Fe3O4+4H2Cu+HCl(g)⟶ No reaction 2Na+2C2H5OH⟶2C2H5ONa+H2
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The oxidation number of in the product of alkaline oxidative fusion of , is
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