An element X on reacting with O2 forms X2O.This Oxide dissolves in water and turns blue litmus paper red. Predict the nature of element whether it is a metal or a non metal.
We are given that the element forms a water soluble oxide with the chemical formula X2O, which turns blue litmus paper red. This means that the oxide is acidic in nature, and acidic oxides are formed by non-metals. Thus, the element X is a non-metal.