Advertisements
Advertisements
प्रश्न
What is meant by the term 'electrolyte'?
उत्तर
Electrolyte is a compound which either in aqueous solution or in molten state allows an electric current to pass through it and is accompanied by discharge of ions and finally into neutral atoms at the two electrodes.
APPEARS IN
संबंधित प्रश्न
State your observation At the cathode, when acidified aqueous copper sulphate solution is electrolysed with copper electrodes.
Copy and complete the following table which refers to the conversion of ions to neutral particles.
| Conversion | Ionic equation | Oxidation / Reduction |
| Chloride ion to chlorine molecule | 1)_________ | 2)_________ |
| Lead (II) ion to lead | 3)_________ | 4)_________ |
Name a non-metallic element which is a conductor of electricity.
Choosing only words from the following list, write down the appropriate words to fill in the blanks (a) to (e) below:
anions, anode, cathode, cations, electrode, electrolyte, nickel, voltameter.
The electroplating of an article with nickel requires an (a) ______ which must be a solution containing (b) ______ ions. The article to be plated is placed as the (c) ______ of the cell in which the plating is carried out. The (d) ______ of the cell is made from pure nickel. The ions that are attracted to the negative electrode and discharged are called (e) ______.
Explain the term : Electro metallurgy
Write the equations for the reactions, which takes place at the electrodes during the electrolysis of lead bromide?
Explain, why copper though a good conductor of electricity 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.
Which of these will act as a non-electrolyte?
Identify the substance underlined in each of the following case :
The particles present in a liquid such as kerosene, that is non-electrolyte.
