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Question
Identify who I am!
Ore of Aluminum- ______
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Solution
Ore of Aluminum- Bauxite
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RELATED QUESTIONS
Name two metals which are highly resistant to corrosion.
Name one metal which is extracted by electrolytic reduction.
Fill in the following blank with suitable word:
Bronze is an alloy of copper and .........
Explain why, an aqueous solution of sodium chloride is not used for the electrolytic extraction of sodium metal.
What is the difference between a mineral and an ore?
How are metals refined by the electrolytic methods?
Draw a well-labelled diagram of extraction of Aluminium. Write the anode reaction in electrolytic reduction of Alumina.
Observe the given figure of reactivity series of metals and answer the following questions:
Reactivity series of metals
- Name two metals which react with water.
- Name two moderately reactive metals.
- Name the most highly reactive metal and the most less reactive metal.
If Cu, Fe, Zn, Al elements are arranged in increasing order of their reactivity then the correct order would be which of the following?
Extraction of moderately reactive elements is done by _______ and _______ method.
Bauxite reacts with sodium hydroxide in the Bayer’s process.
Explain the following reaction with the balanced equation.
Sodium aluminate reacts with water
Observe the following diagram and write answers.
- Name the method.
- Write anode reaction and cathode reaction.
- Why fluorspar and cryolite are added in the mixture?
Explain in brief types of extraction of moderately reactive metals according to their reactivity.
Oxides of moderately reactive metals like Zinc, Iron, Nickel, Tin, Copper, etc. are reduced by using:
Electrical wires have a coating of an insulting material. The material, generally used is
Give the reaction involved during extraction of zinc from its ore by
- roasting of zinc ore
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Two ores A and B were taken. On heating ore A gives CO2 whereas, ore B gives SO2. What steps will you take to convert them into metals?
On the basis of reactivity metals are grouped into three categories:
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Therefore metals are extracted in pure form from their ores on the basis of their chemical properties.
Metals of high reactivity are extracted from their ores by electrolysis of the molten ore.
Metals of low reactivity are extracted from their sulphide ores, which are converted into their oxides. The oxides of these metals are reduced to metals by simple heating.
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(b) Carbon cannot be used as a reducing agent to obtain aluminium from its oxide? Why?
(c) Describe briefly the method to obtain mercury from cinnabar. Write the chemical equation for the reactions involved in the process.
OR
(c) Differentiate between roasting and calcination giving chemical equation for each.
The given reaction shows one of the processes to extract the metals like Iron and Manganese.
\[\ce{MnO2(s) + Al(s) -> Mn(l) + Al2O3(s) + Heat}\]
Give a reason why Aluminium is preferably used in thermite reactions.
