Question

Which is more basic
A. Na2o2 B. Li2O C. KO2

Answer 1

Explanation:

K2O is more basic becoz basic character increases down the group.

Answer 2

Na2O2 is more stable than Na2O because of its size. It's size is larger than Li and hence two sodium atoms cannot be accommodated by one oxygen. So two sodium atoms attach with two oxygen atoms to form a peroxide.