A) As
B) Zn
C) Mg
D) Fe
Correct Answer: B
Solution :
Zn displaces hydrogen from the boiling solution of NaOH. \[Zn+2NaOH+2{{H}_{2}}O\,\,\to \,\,N{{a}_{2}}\left[ Zn{{(OH)}_{4}} \right]\,\,+{{H}_{2}}\,\uparrow \]You need to login to perform this action.
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