An element X on reacting with oxygen
forms an oxide X2O. This Oxide dissolves
in water and turns red litmus blue. State
whether element X is a metal or a non
metal. Explain with proper example

MSCERT Class 10 General Science Ch8 Understanding Metals and Non Metals



X is a metal like Na or K.
Sodium combines with Oxygen to form Sodium Oxide [Na2O].Sodium Oxide dissolves in water and forms an alkali , Sodium Hydroxide
[NaOH]. This turns red litmus blue.