FORMATIVE ASSESSMENT QUESTIONS FOR CCE

Match the method of extraction with the metal:

Explain how the following metals are obtained from their compounds by the reduction process?

Metal $\mathrm{X}$ which is low in the reactivity series.

Explain how the Metal $\mathrm{Y}$ which is in the middle of the reactivity series is obtained from their compounds by the reduction process?

Explain how the following metals are obtained from their compounds by the reduction process?

Metal $\mathrm{Z}$  which is high up in the reactivity series.

Which one of $\mathrm{Cu}, \mathrm{Zn}, \mathrm{Al} \mathrm{and} \mathrm{Fe}$ will satisfy the following? Answer with justification.

(a) One of its ores is rich in ${\mathrm{M}}_2{\mathrm{O}}_3$.

(b) ${\mathrm{M}}_2{\mathrm{O}}_3$ is not affected by water.

(c) $\text{'}\mathrm{M}\text{'}$ forms two chlorides ${\mathrm{MCl}}_2$ and ${\mathrm{MCl}}_3$.

An ore gives ${\mathrm{CO}}_2$ on treatment with dilute acid. Identify the ore and name the process that should be used to concentrate this.

A trivalent metal $\mathrm{X}$ is isolated by the process of electrolysis. It is the most abundant metal in the earth's crust. Identify the metal and state its two uses.

Metal $\mathrm{M}$ occurs in the earth's crust as it's oxide ${\mathrm{M}}_2{\mathrm{O}}_3$. An alloy of this metal is used in making aircraft. Name the metal.