At the anode,the process of $......$ occurs,and at the cathode,the process of $......$ occurs.

What is electrochemistry? Give the uses of electrochemistry.

$A$ solution of copper sulphate may be kept safely in the container made up of

Which of the following statements are correct regarding a fuel cell that uses hydrogen and oxygen as fuels?
$A$. It has been used in spaceships.
$B$. It has an efficiency of about $40 \%$ to $60 \%$ to produce electricity.
$C$. It uses aluminium as a catalyst.
$D$. It is eco-friendly.
$E$. It is actually a type of galvanic cell.

The reference electrode is made by using

The value of the standard electrode potential for the oxidation of $Cl^{-}$ ions is more positive than that of water. Even then,in the electrolysis of aqueous sodium chloride,why is $Cl^{-}$ oxidized at the anode instead of water?