Thank you for reporting, we will resolve it shortly
Q.
Among the following, the one which is most basic is
AIPMTAIPMT 1994The s-Block Elements
Solution:
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.