Question

Which of the following oxides will be most basic in nature?
Na2o
mgO
siO2
cl2o7​

Answer 1

Answer:

na2o

Step-by-step explanation:

All oxides in Group 1 & 2 elements are basic (except BeO), they react with water to form a base: Lithium oxide reacts with water to produce Lithium hydroxide: Li2O(s) + H2O(l) → 2 Li+(aq) + 2 OH−(aq) Sodium oxide reacts with water to produce Sodium hydroxide: Na2O(s) + H2O(l) → 2 NaOH(aq)

Sodium oxide

Sodium oxide is a simple strongly basic oxide. It is basic because it contains the oxide ion, O2-, which is a very strong base with a high tendency to combine with hydrogen ions. Reaction with water: Sodium oxide reacts exothermically with cold water to produce sodium hydroxide solution.