Question

The basic character of MgO, SrO, $K_{2}O$ and NiO increases in the order:

• A. $K_{2}O$ < SrO < MgO < NiO
• B. NiO < MgO < SrO < $K_{2}O$
• C. MgO < NiO < SrO < $K_{2}O$
• D. $K_{2}O$ < MgO < NiO < SrO

Answer 1

The correct option is B

NiO < MgO < SrO < $K_{2}O$

More the metallic character, more is the basic nature of oxide.