IMSU Chemistry 2018/2019 Past Questions

Practice each question, then open it to see the full details.

The following metals are extracted by the electrolytic method except

A.Potassium
B.Tin
C.Calcium
D.Magnesium
E.Aluminium

The separation of a mixture of calcium trioxocarbonate (IV) and sodium trioxocarbonate (IV) is most easily carried out by using the differences in their:

A.Physical states
B.Melting point
C.solubility
D.boiling
E.volatility

Which of the following statements explains why tetraoxosulphate (VI) acid is regarded as strong acid?

A.the acid is concentrated
B.the acid is highly corrosive
C.the acid is completely ionized
D.tetraoxosulphate (VI) ions are very reactive
E.Tetraoxosulphate (IV) acid is dibasic