Extraction of Metal from Metal Oxide

Ashok has written the following reactions to show how metals can be obtained from their ores.

P) $2{\mathrm{Fe}}_2{\mathrm{O}}_3+3\mathrm{C}\to 4\mathrm{Fe}+3{\mathrm{CO}}_2$

Q) ${\mathrm{Na}}_2\mathrm{O}+\mathrm{C}\to 2\mathrm{Na}+\mathrm{CO}$

R) $\mathrm{ZnO}+\mathrm{C}\to \mathrm{Zn}+\mathrm{CO}$

S) $\mathrm{CuO}+\mathrm{C}\to \mathrm{Cu}+\mathrm{CO}$

Identify the INCORRECT reaction(s) among them.

The metal iron is extracted from calamine ore.

Haematite is reduced in a blast furnace by using coke and limestone (flux). Haematite, coke and limestone are introduced from the top of the blast furnace and hot air is introduced at the lower region. Haematite reacts with carbon monoxide gas to give iron and carbon dioxide. This reaction is exothermic.

Explain the extraction of iron.

Write chemical reaction occurring in the reduction zone of the blast furnace.

For the extraction of mercury, firstly mercury sulphide (cinnabar), an ore of mercury, gets converted into its oxide by heating in air, and finally, this mercury oxide, on further heating is reduced to mercury. 

Write the balanced chemical equation for the reduction of mercuric sulphide.

Write the uses of blast furnace in the extraction iron from ${\mathrm{Fe}}_2{\mathrm{O}}_3$.

Complete the following reaction.

$2{\mathrm{Cu}}_2\mathrm{S} +3{\mathrm{O}}_2 \stackrel{\mathrm{roasting}}{\to } \_\_\_\_\_+2{\mathrm{SO}}_2$

Explain the extraction copper from copper sulphide ore.

Write the chemical reactions involved in the extraction of mercury from cinnabar ore.

The chemical formula of cinnabar is 

Which of the following id used as reducing agent in the thermite reaction?

Define thermite reaction.

$$\begin{gathered} \mathrm{X}+\mathrm{Y} \to \mathrm{Z}+{\mathrm{SO}}_2 \\ \mathrm{X}+\mathrm{Z}\to \mathrm{Cu}+{\mathrm{SO}}_2 \end{gathered}$$

Identify X, Y and Z:

Choose the correct statements about the given chemical reaction: 

$3{\mathrm{MnO}}_2\left(\mathrm{S}\right) + 4\mathrm{Al}\left(\mathrm{S}\right) \to 3\mathrm{Mn}\left(\mathrm{l}\right) + 2{\mathrm{Al}}_2{\mathrm{O}}_3+ \mathrm{Heat}.$

a) Reaction is exothermic.

b) Al is acting as a reducing agent.

c)${\mathrm{MnO}}_2$  is getting reduced.

d) Al is more reactive than Mn

In Alumino-Thermite process aluminium is used as 

In thermite reaction, a metal oxide is reduced to metal using a metal '$X$' as a reducing agent. The metal '$X$' refers to

Cinnabar is heated in air which converts it into:

What is the chemical formula of Cinnabar?