AP EAMCET Engineering 22 Sep 2020 Shift 2 Paper

Choose the correct statement from the following :
1) Beryllium is not readily attacked by acids because of the presence of an oxide film on the surface of the metal.
2) BeO is an amphoteric oxide.
3) Beryllium exhibits coordination number more than four.
4) Beryllium oxide is purely acidic in nature.