On the basic of information available from the reaction
$ 4AI + 3O _{2} \rightarrow 2AI _{2}O _{3}; \triangle G = -965$ kJ/mol of $O _{2}$
The minimum EMF required to carry out electrolysis of $ AI _{2}O _{3}$ is
By selecting electrolyte as sodium argentocyanide for electroplating of the metal article with silver. Which of the following condition ensures that deposit is smooth, firm and long-lasting?
A current of 3.7 A is passed for 6 h between nickel electrodes in 0.50 1 of 2 M solution of $Ni(NO _{3}) _{2}$. The molarity of $Ni^{2+}$ at the end of electrolysis is
Which of the following reaction taken place at anode during electroplating of metal with silver using sodium argentocyanide as an electrolyte?
Which electrolyte is selected for the electroplating of metal article with silver?
During silver plating of an article using potassium argentocyanide as an electrolyte, the anode material should be :
Which of the following reaction takes place at the cathode during electroplating of metal with silver using sodium argentocyanide as an electrolyte?
During electroplating of an article with nickel, the reduction reaction of the electrolysis occurs at:
In the electroplating of silver, $AgNO _3$ solution is usually used as:
The metal which is deposited at the cathode during the electrolysis of the solution of silver chloride