If a current of $0.5 \ A$ flows through a metallic wire for $2 \ hours$,then how many electrons would flow through the wire?

$A$ reaction that takes place with the absorption of energy is

Electrolysis of aqueous $Na_2SO_4$ was carried out by passing a current of $3 \ A$ for $10 \ min$. The volume of the gas $(L)$ at $STP$ at the anode of the cell is approximately

During the electrolysis of aqueous $NaCl$ solution, the product formed at the cathode is?

What is electrolysis? What can be produced with the help of electrolysis?

On electrolysis of aqueous solution of $KI$ in the presence of platinum electrodes,which of the following statements are correct?
$(a)$ Hydrogen gas is released at the cathode.
$(b)$ Oxygen gas is released at the anode.
$(c)$ $pOH$ of the solution decreases.
$(d)$ There is deposition of potassium at the cathode.