ChemistryAll the following can liberate hydrogen with alkali except

All the following can liberate hydrogen with alkali except

  1. A
    Al
  2. B
    Zn
  3. C
    Be
  4. D
    Fe

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    Solution:

    Be, Al, Zn are amphoteric metals. They not only liberate hydrogen gas with acids but also liberate hydrogen gas with alkalies.

    BeNaOHNa2BeO2+H2;ZnNaOHNa2ZnO2+H2;AlNaOHNaAlO2+H2;

    ‘Fe’ cannot react with alkalies.

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