Question

Among the following, the one which is most basic is

• A. ZnO
• B. MgO
• C. $AI_2O_3$
• D. $N_2O_5$

Answer 1

Answer: (B)

MgO

Answer 2

ZnO and $Al_2O_3$ are amphoteric oxide, $N_2O_5$ is oxide of non-metal, so it is acidic and hence, MgO is most basic among $Al_2O_3, ZnO, N_2O_5$ and MgO.