Hydrogen is evolved by the action of cold dil. HNO3 on

Hydrogen is evolved by the action of cold dil. HNO3 on

  1. A

    Fe

  2. B

    Mn

  3. C

    Cu

  4. D

    Al

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    Solution:

    Mn+  2HNO3dil.  MnNO32+H2

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