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Which combination cannot be used for thepreparation of hydrogen gas in the laboratory? I.Zn/conc.H2SO4(Impure Zinc is used) II.Zn/dil.HNO3 (Impure Zinc is used) III.Zn/dil.H2SO4 (Very highly pure Zn is used) |
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Answer» Which combination cannot be used for thepreparation of hydrogen gas in the I.Zn/conc.H2SO4(Impure Zinc is used) II.Zn/dil.HNO3 (Impure Zinc is used) III.Zn/dil.H2SO4 (Very highly pure Zn is used)
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