How many of the following metals dissolve in boiling alkali to produce H_(2) gas ? Cu,Ni,Zn, Be,Ag,Fe,Mn,Sn,Al

How many of the following metals dissolve in boiling alkali to produce

1.	How many of the following metals dissolve in boiling alkali to produce H_(2) gas ? Cu,Ni,Zn, Be,Ag,Fe,Mn,Sn,Al
Answer» SOLUTION :FOUR , i.e., ZN, Be, SN, AL