General Princip...

$$\displaystyle Fe_{2}O_{3\left ( s \right )}+2Al_{\left ( s \right )}\rightarrow 2Fe_{\left ( l \right )}+Al_{2}O_{3\left ( s \right )}$$
The above reaction is known as _________ and it is highly ________ .

The diagram shows the sketch of an electrolytic cell used in the extraction of aluminium. What is the substance of which the electrodes A and B are made?

In the alumino thermic process, aluminium acts as:

Which of the following methods is used in purification of mercury?

Liquation method is used for the purification of which of the following metals?

Which one of the following metals is used as foil in wrapping cigarettes and confectionery?

Which of the following minerals occur naturally mainly in combined form? 

Removal of impurities from ore is known as:

In thermite process reducing agent used is:

Any physical and chemical process by which low grade ores are concentrated, is __________.