If a current of $0.5 \ A$ flows through a metallic wire for $2 \ hours$,then how many coulombs would have flown through the wire (in $C$)?

Molten $CuCl_2$ is electrolysed using platinum electrodes. The reaction occurring at the anode is:

Electrolysis of which of the following yields benzene?

Which of the following pairs has easier reduction at the cathode?

When an electric current is passed through a cell containing an electrolyte,positive ions move towards the cathode and negative ions move towards the anode. If the cathode is removed from the solution,what will happen?

During the electrolysis of aqueous $NaCl$,if $3 \ mole$ of $H_2O$ are electrolysed,then how much charge (in $F$) is required if the current efficiency is $75 \ \%$?