Question

Question:-
Which of the following oxide(s) is/are soluble in water to form alkalies?

I) Na2O
II) SO2
III) K2O
IV) NO2

Options:-
a) I and III
b) I only
c) II and IV
d) III only​

Answer 1

Option A 1 and 3

Explanation:

Na2O + H2O - NaOH + H2

K2O+H2O - KOH + H2