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This is one of our many quizzes on Electrolysis. Click on this to access more such competitive quizzes on Physical Chemistry

Electrolysis Quiz 2

chemistry

 What is the use of electrolyte in the process of electrolysis of any chemical?

 Generally Polar solvents are going to be preferred as an electrolyte in the process of electrolysis.

The polar solvents are going to ionize or dissociate the solute into respective ions in the process of electrolysis.  

 In the electrolysis process of sodium chloride, sodium chloride is going to dissociate and forms sodium cation and chloride anion. The sodium cation and chloride anion are going to move towards ___

 Cation contains positive charge and anion contains negative charge and they will move towards the electrodes which contain opposite charges.

Cathode is negatively charged and attracts sodium cation and chloride anion move towards anode which is positively charged. 

 In the process of electrolysis of water find the gas which is produced at cathode? 

  In the process of hydrolysis of water at anode water is going to dissociate into hydrogen cation and the hydrogen cation is going to move towards the cathode and accepts the electrons and liberates a gas at cathode.

 The chemical reactions which occur at anode and the cathode in the process of electrolysis of water are as follows. <br>At anode: ${{H}_{2}}O\to 2{{H}^{+}}+\frac{1}{2}{{O}_{2}}+2{{e}^{-}}\\ $ <br>At cathode: $2{{H}^{+}}+2{{e}^{-}}\to {{H}_{2}}\uparrow \\ $ <br>The hydrogen gas is going to liberate cathode during the electrolysis of water. 

 Electroplating is a process used to coat a coat metal on base metal. Which type of method the electroplating is ___

 In electroplating the coat metal is going to act as an anode and the base metal is going to act as cathode.

 In electroplating the coat metal is going to be generated and moves toward the cathode and forms a layer on the surface of the base metal (cathode) by using the process of electrolysis. 

 Find the metal among the given options which cannot be purified by the process of electrolysis?

  Generally most of the metals are going to be purified through the process of electrolysis from their ores by converting the metals into ions from the respective ores.

 Copper, aluminum and copper are the metals which are going to be purified very easily through the process of the electrolysis from their respective ores. But the chemical nitrogen is not metal and cannot be generated in pure form by using the process of electrolysis.