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प्रश्न
In Electrolytic reduction of alumina, Anode : _______ : : Cathode : Graphite lining
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उत्तर
In Electrolytic reduction of alumina, Anode : Set of carbon (graphite) rods : : Cathode : Graphite lining
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संबंधित प्रश्न
Name the following:
The property possessed by metals by which they can be beaten into sheets.
A zinc ore gave CO2 on treatment with a dilute acid. Identify the ore and write its chemical formula.
Give two uses of bronze.
Why are the metals like Na, K, Ca and Mg never found in their free state in nature?
Name the method by which aluminium metal is extracted.
How is zinc extracted from its carbonate or (calamine)? Explain with equations.
Name the chemical compound which is electrolysed in molten state to obtain aluminium metal. Which gas is evolved during this process?
How is sodium metal extracted? Explain with the help of equation of the reaction involved.
Name the metal which is extracted from haematite ore.
Zinc blende ore can be converted into zinc oxide by the process of:
(a) roasting
(b) hydrogenation
(c) chlorination
(d) calcination
Give reasons, why aluminum is used in:
making alloys
Aluminum is used in thermite welding:
what is thermit?
Aluminum is used in thermite welding:
what is ignition mixture?
Name the following:
The substance added to get rid of gangue in the extraction of metal.
Define roasting.
Answer the following question:
Carbon cannot reduce the oxides of sodium, magnesium, and aluminum to their respective metals. Why? Where are these metals placed in the reactivity series? How are these metals obtained from their ores? Take an example to explain the process of extraction along with chemical equations.
Explain concept with example/explain with the help of a balanced equation.
Ionic bond and ionic compounds
Why should the metal sulphides and carbonates be converted to metal oxides in the process of extraction of metal from them?
