Q9 of 56 Page 85

Name two metal oxides which are:

(a) water soluble


(b) insoluble in water.

(a) Sodium oxide (Na2O), potassium oxide (K2O) are metal oxides which are water soluble.

(b) Copper(II) oxide (Cu2O), Beryllium oxide (BeO) are metal oxides which are water insoluble.


More from this chapter

All 56 →
7

What is meant by malleability? Name two most malleable metals.

 8

What is meant by ductility? Name two most ductile metals.

 10

What is meant by anodising? Why is it done?

 11

Write the electron-dot structure for Na and Cl atoms. How do these form a chemical bond? Name the type of bond so formed. Why does a compound so formed have high melting point?