Question

a. Aluminium is extracted from its chief ore bauxite. [6]

I. )Write 3 balanced equations for the purification of bauxite by Baeyer’s process.

II.) Why the anode need to be replace from time to time.

III.) Write the equation for the reaction which takes place at anode and cathode during the extraction of

aluminium by electrolysis process.

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Answer 1

Methane is an odorless, colorless, flammable gas. It is used primarily as fuel to make heat and light. It is also used to manufacture organic chemicals. Methane can be formed by the decay of natural materials and is common in landfills, marshes, septic systems and sewers.