For bauxite, explain its significance in the extraction of aluminium. - Chemistry

For bauxite, explain its significance in the extraction of aluminium.

Short Note

Aluminium is extracted from bauxite $Al_{2} O_{3} \cdot 2 H_{2} O$ .
Bauxite contains 60% $Al_{2} O_{3}$ , the rest being sand, ferric oxide and titanium oxide.

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Chapter 7: Metallurgy - Exercise 7C [Page 133]

Chapter 7 Metallurgy
Exercise 7C | Q 7.1 | Page 133

Answer the following questions with respect to the electrolytic process in the extraction of aluminum:

Identify the components of the electrolyte other than pure alumina and the role played by each

Explain with reason:

Carbon can reduce lead oxide but not aluminium oxide.

Name the constituents of Bronze.

Write balanced equation for the following reaction:
Aluminium powder is warmed with hot and concentrated caustic soda solution.

Describe the role played in the extraction of aluminum:
Cryolite

Explain why :
Iron sheets are coated with zinc during galvanization.

Name the solution used to react with bauxite as a first step in obtaining pure aluminium oxide, in the Baeyer's process.

Name a metal which is found abundantly in the Earth's crust.

Answer the following question:

Write the chemical formula of one main ore of iron and aluminium.

The chief ore of Aluminium is ______