IE values indicate, that the metal belongs to Ist group since second IE is very high (∵ only one valence electron) Metal hydroxide will be of type, MOH.
MOH
1‌mol
+
HCl
1‌mol
→MCI+H2O
MOH
1‌mol
+
1
2
H2SO4
1
2
‌mol
→
1
2
M2SO4+H2O So one mole of HCl required to react with one mole MOH. So
1
2
mole of H2SO4 required to react with one mole MOH.