मराठी

During Electrolysis of Molten Lead Bromide, Graphite Anode is Preferred to Other Electrodes. - Chemistry

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प्रश्न

Give appropriate scientific reasons for During electrolysis of molten lead bromide, graphite anode is preferred to other electrodes.

उत्तर

During the electrolysis of molten lead bromide, a graphite anode is preferred because graphite remains unaffected by the reactive bromine vapors which are released at the anode.

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Electrolytes
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2014-2015 (March) Science Paper 2

संबंधित प्रश्‍न

Name the gas that is produced in each of the given case :

At the anode during the electrolysis of acidified water.


Define the term : Electrolyte


Make a neatly labeled sketch to show how a brass spoon can be plated with silver. Explain your choice of electrolyte used.


A solution of caustic soda (NaOH) in water or when fused, conducts an electric current. what is the similarity in these two cases?


What should be the physical state of lead bromide if it is to conduct electricity?


If a fused metallic chloride is electrolyzed, at which electrode would the metal be obtained?


What kind of particles will be found in a liquid compound which is a non- electrolyte?


The following is an extract from metals in the service of man, Alexander and street /Pelican 1976': Alumina (aluminium oxide) has a very high melting point over 2000oC, so that I cannot readily be liquefied. However, conversion of alumina to aluminium and oxygen, by electrolysis, an occur when it is dissolved in some other substance.
(a) Which solution is used to react with bauxite as first step in obtaining pure aluminium oxide?
(b) The aluminium oxide for the electrolytic extraction of aluminium is obtained by heating aluminium hydroxide. Write the equation for this reaction.
(c) Name the element which serves both as the anode and the cathode in the extraction of aluminium.
(d) Write the equation for the reaction that occurs at the cathode during the extraction of aluminium.
(e) Write the equation for the reaction that occurs at the cathode during extraction of aluminium by electrolysis.
(f) Give the equation for the reaction that occurs at the anode when aluminium is purified by electrolysis.


Give reasons why although copper is a good conductor of electricity, it is a non-electrolyte.


Classify the following substance:

Dilute sulphuric acid


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